NATIONAL BUREAU OF STANDARDS REPORT

3606

Appendix II

to

Instruction Book

for

Transmissometer Set

AN/GMQ-10

U. S. DEPARTMENT OF COMMERCE

NATIONAL BUREAU OF STANDARDS
U. S. DEPARTMENT OF COMMERCE

Sinclair Weeks, Secretary

NATIONAL BUREAU OF STANDARDS

A. V. Astin, Director

THE NATIONAL BUREAU OF STANDARDS

The scope of activities of the National Bureau of Standards is suggested in the following listing

of the divisions and sections engaged in technical work. In general, each section is engaged in

specialized research, development, and engineering in the field indicated by its title. A brief

description of the activities, and of the resultant reports and publications, appears on the inside

of the back cover of this report.

Electricity and Electronics. Resistance and Reactance. Electron Tubes. Electrical Instru- ments. Magnetic Measurements. Process Technology. Engineering Electronics. Electronic

Instrumentation. Electrochemistry.

Optics and Metrology. Photometry and Colorimetry. Optical Instruments. Photographic

Technology. Length. Engineering Metrology.

Heat and Power. Temperature Measurements. Thermodynamics. Cryogenic Physics.

Engines and Lubrication. Engine Fuels.

Atomic and Radiation Physics. Spectroscopy. Radiometry. Mass Spectrometry. Solid

State Physics. Electron Physics. Atomic Physics. Nuclear Physics. Radioactivity. X-rays. Betatron. Nucleonic Instrumentation. Radiological Equipment. AEC Radiation Instruments. Chemistry. Organic Coatings. Surface Chemistry. Organic Chemistry. Analytical Chemistry.

Inorganic Chemistry. Electrodeposition. Gas Chemistry. Physical Chemistry. Thermochemistry. Spectrochemistry. Pure Substances.

Mechanics. Sound. Mechanical Instruments. Fluid Mechanics. Engineering Mechanics.

Mass and Scale. Capacity, Density, and Fluid Meters. Combustion Controls.

Organic and Fibrous Materials. Rubber. Textiles. Paper. Leather. Testing and Specifications. Polymer Structure. Organic Plastics. Dental Research.

Metallurgy. Thermal Metallurgy. Chemical Metallurgy. Mechanical Metallurgy. Corrosion.

Mineral Products. Porcelain and Pottery. Glass. Refractories. Enameled Metals. Concreting Materials. Constitution and Microstructure.

Building Technology. Structural Engineering. Fire Protection. Heating and Air Conditioning. Floor, Roof, and Wall Coverings. Codes and Specifications.

Applied Mathematics. Numerical Analysis. Computation. Statistical Engineering. Mathematical Physics.

Data Processing Systems. Components and Techniques. Digital Circuitry. Digital Systems.

Analogue Systems.

Cryogenic Engineering. Cryogenic Equipment. Cryogenic Processes. Properties of Materials.

Gas Liquefaction.

Radio Propagation Physics. Upper Atmosphere Research. Ionospheric Research. Regular

Propagation Services.

Radio Propagation Engineering. Frequency Utilization Research. Tropospheric Propagation

Research.

Radio Standards. High Frequency Standards. Microwave Standards. • Office of Basic Instrumentation • Office of Weights and Measures
NATIONAL BUREAU OF STANDARDS REPORT

NBS PROJECT ms REPORT

0201-20-2302 August 6, 1954 3606

0201-20-2301

Appendix II

to

Instruction Book

for

Transmissometer Set

AN/GMQ-10

Prepared by

Photometry and Colorimetry Section

Optics and Metrology Division

For

Air Research and Development Command

Department of the Air Force

and

Visual Landing Aids Section

Bureau of Aeronautics

Department of the Navy

U. S. DEPARTMENT OF COMMERCE

NATIONAL BUREAU OF STANDARDS

The publication. reprint) Approved for public release by the

unless permission iaobtai Director of the National Institute of

25 .D.C. Such permissic Standards and Technology (NIST)

cally prepared If that ap on October 9, 2015

ft, Is prohibited

ds, Washington

ias been speclflfor Its own use.
X
AN/GMQ-10 Appendix II

Paragraph B-l, to B-1,3,2,

APPENDIX II

MAINTENANCE PARTS LIST

B-lo GENERAL0

PURPOSE OF MAINTENANCE PARTS

LISTo The maintenance parts list

which follows may be used in two

wayss (a) in eonj unction with parts

identification photographs and

drawings to identify a part by reference symbol,, name,, function,, and/

©r manufacturer®! catalog number?

(b) in conjunction with Sections ¥

and VII 11 trouble shooting,

B-1,2, SCOPE, This maintenance

parts list contains a listing of all

electrical and electronic parts and

most seehanieal and structural parts

of Transmis some ter Set AN/GMQ-10*

B-l, 3, ARRANGEMENT OF MAINTENANCE

PARTS LIST, The maintenance parts

list has the following primary divisionss (1) Major Omits? (2) Transmissoraeter Receiver R-547/GMQ-1© aid

Amplifier -Power Supply AM-809/GMQ-10?

(3) Transmis some ter Indicator ID353/GMQ-10? and (4) Tfansmis some ter

Projector ML-461/GMQ-10 and Power

Supply PP=908/GM0=10o Parts of

Cable Terminal Chambers J-556/GMQ10 are included with those of the

receiver and projector,,

B-1,3,1, Each primary division,, except that for major units 0 is subdivided by alphabetical order of the

symbol number. Within the symbol

groups,, the parts are arranged num- erically,

B-1,3,2, Each page of the maintenance parts list has five columns*

In order,, from left to right 0 they

ares

a, SYMBOL, This is the reference symbol number given @n schematic diagrams or parts identification figures,

bo NAME OF PART AND DESCRIPTION,

This column contains a brief description which is sufficient, for

part Identification, When there

are identical parts,, the description is entered the first time only

in each primary division. In lieu

of a repeated description the

statement "Same as —" is entered,

©o FUNCTION OF PART, This column contains a brief statement of

the function of each part,

d. TYPE NUMBER (JAN or Mftr),

This column contains the JAN or MIL part number of manufacturer °s

part number for each part for

which such a number is applicable.

In the case of very common items

(screws,, nuts„ etc,) sufficient

description has been included in

the description column to procure

a suitable replacement item without

going back to the manufacturer of

the Set®

e, OTHER IDENTICAL PARTS , The

Symbol numbers of other identical

parts are entered in this column

opposite the symbol number the

first time the part is entered in

the list®

B~1
Appendix 11

Paragraph B-2® to B-2®2®1

AN/GMQ-10

B~2® REQUISITION OF SPARE PARTS

.

B~2® 1® AIR FOTC£„

B-2®1®1® Sine® this parts list is

intended to be only a parts identification list, use the appropriate T.Oo No 0 16-55, ’"Spare Parts

List” as indicated in Part I of

XoOo N© 0 00-1-16, ""Numerical Index

of Technical Publications —

Electronic Equipment Publications,”

for information regarding requisitioning spare parts®

B-2e2o OTHER AGENCIES <,

B-2®2 0 1® Requisitioning of spare

parts should be done as prescribed

by the responsible agency® For

convenience, a column headed "'Type

lumber (JAN or Mftr)” has been

included®

B-2
AN/GMQ-10 Appendix II Parts DI01 to A 108

B-3. MAJOR UNITS OF TRANSMI SSOMETER SET AN/GHQ-10.

Symbol Name of Part and Description Function of Part Type Number

(JAN or Mftr) Other Identical

Parts

U101 Unit, pulse amplifier. Generates a pulse signal

ith a pulse rate proportional to the light inci- dent on the receiver.

C-H

FL3050

U102 Unit, receiver amplifier: less cabinet. Amplifies pulse signal before impressing it onto

the transmission line.

C-H

FL3061

U103 Unit, cable terminal chamber. Chamber for termination

of field cabling. C-H

46957

U303

D201 Unit, indicator: less cabinet

and recorder. Converts pulse signal to

a meter reading proportional to the pulse rate.

C-H

FL2807

0301 Unit, projector power supply: less cabinet and voltageregulating transformer.

Supplies power for

lamp E301. C-H

FL2863

D302 Unit, projector. Bousing for lamp E301. C-H

FL2862

U303 Same as U103. (Unit, cable ter- minal chamber. ) Chamber for termination

of field cabling.

B-4. IDENTIFICATION OF PARTS FOR TRANSMISSOMETER RECEIVER R-547/GMQ-10 A1B AMPLIFIER- POWER SDPPUT AM-809/GMQ-10.

Symbol Name of ftrt and Description Function of Part Type Number Other

(JAN or Hftr) Identical

Parts SmSKBAL . PftPIS

A 101 Hood, lens: brass. Reduces stray light; protects lens 7101. C-H

FL3345

A102 Barrel, lens: brass. Joins lens diaphragm

assembly and pulseamplifier unit housing.

C-H

FL3358

A103 Yoke, mounting: U-shaped;

brass. Front mounting supportfor receiver telescope

assembly.

C-H

FL3307

A 104 Ring, mounting: front; cast

brass . Front mounting support for receiver telescope assembly with rotational free- dom for alignment purposes.

C-H

FL3208

A105 Ring, mounting: rear; cast

brass. Rear mounting support for receiver telescope assembly; bolds vertical and horizontal alignment ad- justment screws.

C-H

FL3206

A 106 Cover: rear< cast brass. Cover for pulse-amplifier

unit housing. C-H

FL3148

A107 Cabinet: receiver amplifier; cast aluminum. Cabinet for receiver am- plifier unit. C-H

FL3402

A108 Bracket, mounting: for pivot

bar; L-shaped.

Mounting for receiver am- plifier unit pivot bar.

(2 required)

C-H

FL3451

B-3

k
Appendix II Parts A 109 to C105 AN/GMy-10

B-4. IDENTIFICATION (F PARTS FOR TRA NSMI SS CM ETER RECEIVER R-547/GMy-10 AND AMPLIFIER-POWER SUPPLY AM-809/GMg-10. (cont.)

Symbol Name of Part and Description

A109 Bar, pivot: round steel rod.

A110 Arm, extension: steel.

A 1 1 1 Bracket, mounting: for receiver

amplifier chassis; steel.

A112 Bracket, shipping: for receiver

amplifier chassis; steel.

A113 Mounting subassembly: front; cast aluminum.

A114 Mounting subassembly: rear; cast aluminum.

A115 Plate, mounting: brass.

A116 Terminal box: with cover; gray

cast iron.

A117 Hub plate, conduit: blank; gray

cast iron.

A118 Hub plate, conduit: one 2 1/2" threaded conduit hub; gray cast

iron.

A119 Hub plate, conduit: one 1" threaded conduit hub; gray cast

iron.

A120 Plate, mounting: sheet steel.

Function of Part

Provides pivot support for receiver amplifier unit extension arms.

Supports receiver amplifier unit when extended.

(2 required)

Mounts receiver amplifier chassis to extension arms.

(2 required)

Provides support for re- ceiver amplifier unit in shipment. (4 required)

Front mounting base for cabinet A107.

Rear mounting base for cabinet A107.

Mounting plate for thermostat in pulse amplifier.

Waterproof housing for terminal blocks E109 and E110 and circuit breaker

K101.

Hub plate for A116.

Hub plate for A116.

Hub plate for A116.

Mounting plate in A116

for terminal blocks and circuit breaker.

Type Number

(JAN or Mftr)

C-H FL3409

Other Identical

Parts

C-H

FL3412

C-H

FL3411

C-H FL3410

C-H

FL3399

C-H FL3398

C-H FL4226

C-H YWS886036

C-H

YYP800

C-H

YYP87

C-H

YYP83

C-H

CPYK1

A309

A310

A311

A312

A3 13

A3 14

A3 15

C101

C102

C103

C104

C105

CAPACITORS

Capacitor, fixed: silvered mica dielectric; 20 mmf ± 5%; 500 vdcw.

(Value nominal; precise value de- termined at factory for individual pulse-amplifier units.)

Charging capacitor for V102; determines the sen- sitivity of pulse-amplifier unit.

Sprague

Type MS

Capacitor, fixed: mica dielectric; 10,000 nmf ± 10%; 300 vdcw. Bypass for R102. CM35B103K C209, C214

Capacitor, fixed: mica dielectric; 470 mnf ± 10%; 500 vdcw. Blocking capcitor for

J105. CM20B471K C108, C109

C110, C201, C210

Capacitor, fixed: paper dielectric; 50,000 mmf ± 10%; 600 vdcw. Cathode bypass capacitor

for VI 09. CP53B1EF503K

Capacitor, fixed: paper dielectric; 4 mf ± 10%; 600 vdcw. Filter capacitor in B+

supply. CP70B1EF405K C105A.C203,

C211, C212

B-4
AN/GMQ-10 Appendix II Parts C105A to E110

B-4. IDENTIFICATION OF PARTS FOR TRANSMISSOMETER RECEIVER R-547/GMQ-10

AND AMPLIFIER- POWER SUPPLY AM-809/GMQ-10. (cont.)

Symbol Name of Part and Description Function of Part Type Number

(JAN or Mftr) Other Identical

Parts

C105A Same as CIOS. Filter capacitor in B+

supply.

C106 Capacitor, fixed: paper dielectric; 1 mf ± 10%; 400 vdcw. Stabilizing capacitor for regulated B+ voltage. CP53B1EE105K

C107 Capacitor, fixed: paper dielectric, metallized; 20 mf ± 20%; 100 vdcw; 150 vdct.

With Rill, forms an RC circuit to smooth the current through M101.

Gudeman XMF-17164

C108 Same as C103. Charging capacitor for V107 during forward half- cycle and bypass capacitor

for reverse half-cycle.

C109 Same as C103. Couples signal from calibrator to V108.

CllO Same as C103. Couples signal from V109

to V108. cm Capacitor, fixed: paper dielectric; 100,000 mmf ± 10%; 600 vdcw.

Discharge capacitor for V108 - determines charge

per pulse through V108.

CP53B1EF104K C204

Cl 12 Capacitor, fixed: paper dielectric; 2 mf + 20% - 10%; 600 vdcw. Blocking capacitor, pre- vents current from rectifier CR301 flowing through

T102 and actuating relay

K301.

CP41B1EF205V C213

ELECTRICAL EQUIPMENT

E101 Insulator, feedthru: double ended conical shape; white porcelain, glazed.

Insulator for mounting

C101. Bud Rad 1-436

E102 Insulator, standoff: conical

shape; white porcelain, glazed. Insulator for mounting

R101. Bud Rad 1-300

E103, E304

E103 Same as E102. Insulator for mounting

R107.

E104 Board, terminal: general purpose; 2 brass nickel pi screw term with solder tabs.

115 vac input terminals

for use in bench tests. Jones HB 2-141-3/4-

W-B-2

E202

E105 Same as E102. Insulator for mounting

R118.

E106 Board, terminal: general purpose; 7 brass nickel pi screw

term.

Terminal board for inter- connecting cables.

Jones HB 7-141-B-2

E107 Holder, fuse: extractor post type for single 3AG fuse. Fuse holder for F101. Buss HKP

E201,

E108 Board, terminal: general purpose; 11 pairs solder lug term. Mounting board for small components. C-H

FL3013

E109 Board, terminal: general purpose; 8 brass screw term. Terminal board for field

cabling. GE

16EB1A2

E305

E110 Board, terminal: general purpose; 4 brass screw term. Terminal board for field

power cable. GE 16EB1A1

E306

B-5

k
Appendix II Parts F101 to HI 16

AN/GMQ-10

B-4. IDENTIFICATION OF PARTS FOR TRANSMISSCMETER RECEIVER R-547/GMQ-10

AND AMPLIFIER-POWER SUPPLY AM-809/GMQ-10. (cont.)

Symbol Name of Part and Description Function of Part

EHSES

Type Number

(JAN or Mftr) Other Identical

Parts

F101 Fuse, cartridge: 1-1/4 amp, 250 v; one time; high time lag. Fuses ac power line input

to receiver amplifier.

Bass

MDL- 1-1/4

F201

HARDWARE PARTS

H101 Tool, aligning: for use on transmi ssometer receiver; brass; has round glass disk for focusing

aid.

Used for preliminarily

aligning the optical system of the receiver

telescope.

C-H

FL3385

H102 Wrench, lens retaining ring. Removes lens retaining

ring 0101. C-HFL3391

H103 Inhibitor, bird: consists of U- shaped drop and mtg clip; brass. Discourages birds from roosting in lens hood A101.

C-H

FL3362

H104 Screw, machine: slot drive; Fil

H; brass, cad pi; “12-24 thd; 1/2" lg.

Set screw to hold lens hood A101 in proper orientation.

H105 Screw, set: slot drive; headless;

steel; “8-32 thd; 1/2" lg; flat

point.

Set screw to maintain

position of lens retaining ring 0101.

H106 Gasket: fiber; 4" OD, 3-3/4" ID, 1/32* thk. Gasket for lens 1101.

(2 required) C-H

FL4164

H107 Fitting, conduit: condulet Type

LB; brass; 1/4". Junction box for hood heater HR101. C-H

LB287

H108 Cover, conduit fitting: brass. Cover for H107. C-H

2870

H109 Gasket: rubber. Gasket for H107. C-H

4728

Hi 10 Fitting, conduit: flexible cable

to conduit; brass; 1/4”; male thd. Watertight entrancefitting. C-H

FL3445

Hill Bushing: reducer; rubber. Bushing for fitting HllO. C-H

HL6537

Hi 12 Screw, machine: hex head; brass; l/4"-20 thd; 3/4" lg; threaded

portion 1/2" lg.

Screw for mounting dia- phragm assembly Q101 to barrel A102. (6 required)

HI 13 Screw, machine: hex head; brass; 3/8"-16 thd; 1" lg; all threaded.Holds yoke A103 and mounting ring A104 together.

(2 required)

HI 14 Screw, machine: hex head: brass; 3/8"-16 thd; 1-1/2" lg; threaded

portion 1" lg.

Holds mounting ring A104

and barrel A102 together.

(2 required)

H115 Screw, machine: hex head; brass, cad pi; 3/8"-16 thd; 1" lg

;

threaded portion 3/4" lg.

Mounts receiver telescope

assembly to stand.

(4 required)

H116 Screw, machine: hex head; brass; l/4"-20 thd; 1/2" lg; all threaded.Retains pulse amplifier

unit in housing.

(4 required)

B-6
AN/GMQ-10 Appendix II Parts HI 17 to H134

B-4. IDENTIFICATION CF PARTS FOR TRANSMISSOMETER RECEIVER R-547/GMy-lO

AND AMPLIFIER -POWER SUPPLY AM-809/GMy-10 . (cont.

)

Symbol Name of Part and Description Function of Part Type Number

(JAN or Mftr) Otner Identical

Parts

HI 17 Screw, machine: hex nead; brass;

l/4’’-20 thd; 1-1/4" lg; tnreaded

portion 7/8" lg.

Holds cover A106 to pulseamplifier unit housing.

(4 required)

HI 18 Gasket: cover; silicone treated

asbestos. Gasket for cover A106. C-H

FL4304

Hi 19 Screw, set: Allen drive; headless;

steel; l/4"-20 thd; 1/2" lg; cup

point.

Holds focusing ring 0103

in position.

H120 Fitting, conduit: flexible cable

to conduit; brass; 3/4"; male thd. Watertight entrance fitting. C-H

CGB295

H139

H121 Bushing: reducer; rubber. Bushing for H120. C-H

BUSH05

H140

H122 Washer, gland: steel, cad pi; 21/32" ID, 29/32" OD, 0.025" thk. Permits tightening of Hl20 without distorting

H121.

C-H

GlandWash 94

H141, Hl45

H123 Nut, hexagon: brass, cad pi; 3/8"-16 tnd; 3/8" tnk; 11/16"

wd across flats.

Nut for Hi 15.

(4 required)

H124 Screw, machine: hex head; brass; 3/8"- 16 tnd; 2-1/2” lg; all tnreaded.

Vertical or horizontal alignment screw.

(4 required)

H125 Gasket: door; silicone treated

asbestos. Gasket for door of cabinet A 107. C-HFL3774

H322

H126 Lock: key latch; ward mechanism. Latch for cabinet A107. Corbin Cabinet 0357SGH318

H127 Key, lock: brass. Key for H126. H319

Hl28 Bolt, double ended: stainless

steel; l/4"-20 thd; 2-3/4" lg; 3/8" threaded lengtn each end; less nuts.

Hinge bolt for door of cabinet A107.

(2 required)

C-H

FL3452

H328

H129 Nut, hexagon; steel, chromium

pi; l/4"-20 thd; 1/4" tnk; 7/16"

wd across flats.

Nut for H128.

(4 required)

H329

H130 Pin, dowel: brass; 3/8" diam x 1-3/8" lg. Fastens extension arm A110 to pivot bar A109.

(2 required)

C-H

FL3417

H131 Screw, machine: hex nead; steel, cad pi; 3/8"-16 thd; 1-3/8" lg; threaded portion 1" lg.

Fastens receiver amplifier chassis brackets to extension arms.

(2 required)

H132 Nut, hexagon: steel, cad pi; 3/8"-16 thd; 3/8" thk; 11/16" wd across flats.

Nut for H131.

(2 required) C-H

KL4726

h133 Clamp, shipping: steel, cad pi; L-shaped.Clamps receiver amplifier chassis during

shipment. (4 required)

C-H

FL3545

H134 Screw, machine: slot drive; RH; brass, cad pi; “10-32 tnd; 3/4"

lg; all threaded.

Screw for H133.

(4 required)

B-7
Appendix II Parts H135 to H154

AN/GMQ-10

B-4. IDENTIFICATION OF PARTS FOR TRANSMISSOMETEB RECEIVER R-547/GMQ-10

AND AMPLIFIER- POWER SUPPLY AM-809/GMQ-10 . (cont.)

Symbol Name of Part and Description Function of Part Type Number

(JAN or Mftr) OtherIdentical

Parts

H135 Screw, machine: hex head; brass, nickel pi; l/4”-20 thd; 5/8" lg; all threaded.

Fastens brackets A112 inside cabinet A107.

(8 required)

H136 Fitting, conduit: flexible cable

to conduit; brass; 1”, male thd. Watertight entrance fitting. (2 required) C-HCGB395

IB36

H137 Bushing: reducer; rubber. Bushing for H136.

(2 required) C-H

BUSH95

H337

H138 Washer, gland: steel, cad pi;

1" ID, 1-3/8" OD, 0.025" thk. Permits tightening of H136 without distorting H137.

(2 required)

C-H

GlandWash 95

1038

H139 Same as H120. Watertight entrance fitting.

H140. Same as H121. Bushing for H139.

H141 Same as H122. Permits tightening of A139

without distorting H140.

H142 Fitting, conduit: reducer; steel, cad pi; 1-1/2" to 3/4". Reduces diameter of hole

in cabinet A107. C-HRE52

H143 Fitting, conduit: flexible cable

to conduit; brass; 1/2”, male thd. Watertight entrance fitting. C-H

CGB193

H144 Bushing: reducer; rubber. Bushing for H143. C-H

BUSH93

H145 Same as H122. Permits tightening of H143 without distorting H144.

H146 Strike, lock: steel; L-shaped. Strike for latch H125. C-H

4469N

H324

H147 Not used.

H148 Mounting, switch: steel, cad

pi. Mounting for S108. C-H

FL3427

H201

H149 Cower: switch; steel, cad pi; L-shaped. Protective cover for S108. C-H

FL3894

H202

H150 Screw, machine: hex head; brass, nickel pi; 5/16"-18 thd; 3/4" lg; all threaded.Screw for mounting brackets A108. (4 required)

H151 Screw, machine: slot drive; FH; steel, nickel pi; 3/8"-16 thd; 5/8" lg; all threaded.Screw for mounting sub- assembly A113 to cabinet

A107. (3 required)

H152 Nut, hexagon: brass, cad pi; l/2"-13 thd; 1/2" thk; 5/8" wd

across flats.

Nut for studs on mounting subassemblies AU3 and

A 1 14 . (4 required)

C-H

KL2705

H327

H153 Screw, machine: slot drive; hex

head; steel, nickel pi; 3/8"-16

thd; 3/4" lg; all threaded.

Screw for mounting sub- assembly A114 to cabinet

A107. (3 required)

H323

H154 Clamp: capacitor mounting;

footed. Clamp for mounting C105.

(2 required) CP07FB4 H155, H208,

H209, H210

B-a
AN/GMQ-10 Appendix II Parts H155 to J101

B-4. IDENTIFICATION OF PARTS FOR TRANSMISSOMETER RECEIVER R-547/GMQ-10

AND AMPLIFIER- POWER SUPPLY AM-809/GMQ-10 . (cont.)

Symbol Name of Part and Description Function of Part Type Number

(JAN or Mftr) Other Identical

Parts

H155 Same as H154. Clamp for mounting C105A.

(2 required)

H156 Knob: bar; black bakelite; for

1/4" shaft. Knob for S104. Mallory 366-1

H203, H332

Hi 57 Washer, flat: steel; round; 7/16" ID, 3/4” OD, 1/16" thk. Washer between extension

arm A110 and mounting

bracket A 1 11.

(2 required)

C-H

8238-N

H158 Screw, set: Allen drive; steel cad pi; s8-32 thd; 1/4” lg; cup

point.

Locks iris diaphragm ad- justment shaft. H159

H159 Same as H158. Locks lens retainer of pulse amplifier into

position.

H160 Washer, flat; fiber; round; 7/32" ID, 13/32" OD, 0.02" thk. Makes screw H117 captive.

(4 required)

H161 Nut, check: hexagon; steel, cad

pi; 1", pipe thd. Locks H136 into place.

(2 required)

K339

H162 Nut, check: hexagon; steel, cad

pi; 1/2", pipe thd. Locks H143 into place.

HI 63 Not used.

H164 Gasket: cover; rubber; 3/8” diam, 46" lg.

, Gasket for cover of terminal box A116. H340

HI 65 Gasket: hub; cork. Gasket between hub plates

and terminal box A116.

{3 required)

C-H

Gaskl40

K341

HEATERS

HR101 Heating element, electrical:

cartridge type; 115 v, 50 w. Heats lens hood and lens

to prevent condensation

of moisture on lens.

Wiegand C-201AHR 102

HR 102 Same as HR101. Heats pulse-amplifier

unit.

OPTICA L PARTS

1101 Lens, condensing: 4" diam, 32" focal length. Objective lens for re- ceiver optical system. C-H

FL2907

1102 Lens, condensing: 0.96" diam, 2.015" focal length. Forms image of lens 1101

on photosensitive surface

of photoelectric cell

V101.

C-H

FL3063

JACKS AND CONNECTORS

J101 Connector, male contact: 6 round male contacts. Connector at pulse-amplifier unit for lines to receiver amplifier.

AN3102A-22-5P J103, J202

B-9
Appendix II Parts J102 to 0103 AN/GBQ-10

B-4. IDENTIFICATION OF PABTS FOR TRANSMSSOMETEJ? BECEIVEH B-547/GMQ-10

AND AMPLIFIER-POSTER SOPPUf AM-809/GMQ-1O (eont.)

Symbol Name of Part sad Description Function of Part. type Number

(JAN or Mftr) Other Identical

Parts

J102 Connector, female contact: 6 round

female contacts. Connector at receiveramplifier for lines to pulse-amplifier unit.

AN3102A-22-5S

J103 Same as JJ01. Connector at receiver

amplifier for lines from

terminal board E106.

JI04 Connector, female contact: 2 curved contacts; 10 amp, 250 v; accepts standard 2-reetangularcontact male plug.

Convenience outlet for

ac power

Hubbell 9218

J302

J105 Jack, telephone: for two cond 0.25" diam ping. Input test jack. JAN JJ103 J106, J203

J204, J301

J106 Same as J105. Output test jack.

EL^Xg^t^mj^JXJBtLEMEBS

K101 Circuit breaker: magnetic;

2 pole; 125 vac, 5 amp; molded

black bakelite case; toggle

action, manual reset.

Circuit breaker for Input power. Heineman

22 63186- SACS K302

INPDCTC6S U01 Reactor: filter choke; 12 hy, 105 ma; 150 ohms de resistance; 2500 v SMS test; hermetically

sealed metal case.

Filter choke in B+

supply.

METERS

Chi Trans RH-121051201

aioi Meter, arbitrary scale: transmission; dc; range 0 to 100; one

ma full scale deflection; ac- curacy 1% of full scale deflection.

Indicates transmission

reading. Weston Model *760

M201, M301

88102 Meter, frequency indicator: ac, 56 to 64 cycles; vibrating reed

movement; hermetically sealed; scale calibrated in "CALIBRATION

SETTING" of 84 to 96.

Indicates calibration

setting corresponding to ac-line frequency.

Biddle 4975-BS M202

HEEBMgEM.J9MS

0101 Ring, lens retaining; brass. Retains lens 1101 in position. C-H

F13250

0102 Insert, heater: brass. Provides close thermal

contact between heater

HR 101 and diaphragm as- sembly Q101 ; connects

conduit fitting H107 to

Q101.

C-H

FL3346

•

0103 Ring, focusing: brass. Provides means of focusing projector image on field stop in pulse-amplifier unit.

C-B

FL3196

B-10
AN/GMQ-10

Appendix II Parts 0104 to EI09

8-4. IDENTIFICATION OF PARTS FOB TRANSMISSOHETER RECEIVER R-547/6HQ-10

Al® AMPLIFIER-PONER StJPPLT AM-809/GMQ-10 (cont.)

Symbol Warm of Part and Description Function of Part Type Number

(JAN or Kftr) Other Identical

Parts

0104 Bearing, sleeve: brass. Bearing for pivot bar

A109 and extension arm

A110. (2 required)

C-H

FL3408

PLPSS

P101 Connector, female contacts 6

round female contacts; has fiber

spacer disk in milled cap.

Ping for J101 (on cable

W101). AN3106A-22-5S

(modified)

P102 Connector, sale contact: 6 round

ess le contacts; with cable clamp.

Ping for J102 (on cable

W101). AN3106A-22-5P

W/AN3057-12

P103 Connector, female contacts 6

round female contacts; with cable

clamp.

Plug for J103 (on cable

9103)

.

AN3106A-22-5S

w/AN3057-12

P202

DIAPHRAGMS

Q101 Diaphragm Assembly: iris type; brass; 1" rain, 4" aas aperture

opening.

Changes quantity of light

entering optical system

from projector.

C-H

F1308S

RESISTORS

B101 Resistor, fixed: composition;

1 meg ± 10% 1/2 w. Units current through

V101 in event of excessive

illumination.

RC20BF105K 8102, R222 8225

BM2 Same as ilOl. Qaenehes discharge through

VI02.

§103 Not used.

§104 Resistor, fixed: wirewonnd; 4000

ohm; 12 w. Ballast resistor for V104

and V105. RN32F402

or RN32G402

BIOS Resistor, fixed: composition;

10,000 ota ± 10% l v. Cathode bias resistor for

V109. BC30BF103K 1223

8106 Resistor, fixed: composition; 8,200 ota ± 10% 1 w. Damps oscillations which

affeet characteristics

of V102.

BC30BF822K

1107 Resistor, fixed: composition; 47 ota ± 10%; 1/2 w. With R108, shunts seta?

19101 (and H301); limits range of calibration ad- justment provided by BIOS.

8C20BF470K

RIOS Resistor, variable: composition; 500 ohm ± 10%; 2 w; slotted round

netal shaft; linear taper.

Bith R107, shunts meter

13101 (and B301); pro- vides calibration ad- justment by varying the current bypassing these

rasters.

AB

JUJ5011

8100 Resistor, fixed: composition;

47,000 ota ± 10%; 2 w. Quenches discharge

through ¥106. RC4IBF4T3K BUS

B-ll
Appendix II Parts R110 to S1Q®

AN/GMQ-IO

B-4.

Symbol

R110

Rill

RU2

8113 RIM

8115

R116

R117

8118

5101

5102

5103

5104

5105

5106

5107

sioe

IDENTIFICATION OF PARTS FOS TRANSMISS0METE3 RECEIVER R-547/GMQ-10

AMD AMPLIFIER-POWER SDPPUf AM-809/GMQ-10 (eont.)

Naas of Part and Description

Resistor, fixed: composition;

47,000 ohm ± 10%; 1/2 w.

Resistor, fixed: composition; 4700 ohm ± 10%; 1/2 tr.

Resistor, fixed: composition; 100,000 ohm ± 10%; 1/2 w.

Not used.

Resistor, fixed: composition;

100 ohm ± 10%; 1/2 w.

Same as R109.

Resistor, fixed: composition;

1000 ohm ± 10%; 1/2 w.

Resistor, variable: composition;

1000 ohm ± 10%; 2 w; slotted round metal shaft; linear taper.

Resistor, fixed: composition;

82 ohm ± 10%; 1/2 w.

Switch, thermostatic: SPST; operating temp 90T ± 5°; 12 amp, 120 vac.

Switch, toggle: DPST.

Switch, toggle: SPOT.

Switch, rotary: position al

1C; position *2 —1A; 3 amp, 110 vac; momentary contact in position *2.

Same as S102.

Same as S102.

Same as S102.

Function of Part

Current limiting resistor

for V107,

With C107 (and R116 and

8117) forms an 8C circuit

to smooth current through

H101.

Grid resistor for V108.

Limits peak current

through V108 during discharge.

With R116 and R117 (and Rill) forms voltage divider to provide grid

bias for V108.

With R115 and R117 (and Rill) forms voltage divider to provide grid

bias for V108; determines minimum grid bias

of vice.

With R115 and R116 (and Rill) forms voltage divider to provide grid

bias for V208; grid

bias adjustment potentiometer for ¥108.

Substitutes for resistance

of aster 81301 (at pro- jector).

smcies

Regulates temperature in pulse-amplifier unit.

Switches B+ supply to metering circuit (one pole only used).

Switches mater ®01 in

or out of circuit.

Energizes calibrator and replaces pulse-amplifier

signal ©a grid of 7108 with calibrator signal.

Opens B+ circuit to pulseamplifier unit.

Switches ac power to pulse-amplifier unit heater HR 102.

Main ac power switch.

Type Number

(JAN or Mftr)

RC20BF473K

8C20BF472K

RC20BF104K

RC20BF101K

RC20BF102K

AB

JL01021

RC20ar820K

Spencer Thermo 04370-3-67

ST22E

ST12D

Mossmaa DP

4402TN-NT- DPDT

8.12

Other Identical

Parts

8228, 8229

8113, R204

R207

S105, S106,

S107, S204, S301

S201

S203

Not used,
AN/GMQ-10 Appendix II Parts T101 to V109

B-4. IDENTIFICATION OF PARTS FOR TRANSM ISSOMETER RECEIVER B-547/GMQ-10

A I® AMPLIFIER- POWER SUPPLY ABJ-809/GMQ-10. (cont.)

Symbol Name of Part and Description Function of Part Type Number

(JAN or Mftr) Other Identical

Parts

T101 Transformer, AF: input type; primary 20,000 ohms impedance

CT; drawnsteel upright, shielded case; laminated iron

core; turns ratio of 1/2 pri- mary to secondary 3:4.

Interstage coupling transformer between V102 and

V109.

Chi Trans

PHD-25

T102 Transformer, pulse: used as output transf in receiver amplifier;

hermetically sealed metal case; primary to secondary turns ratios

of 40:1, 20:1, and 10:1 by sec- ondary taps; 1250 v test.

Tube to transmission line output transformer from

V109.

Chi Trans

16306

T103 Transformer, power: filament and plate type; input 117 v, 50/60

eye, single ph; sec*l, 740 vCT

at 150 ma, sec u2, 5 vCT at 3

amp, sec *3, 6,3 vCT at 4 amp, sec s4, 6.3 vCT at 1 amp; her- metically sealed metal case.

Supplies ac power to filaments and B+ rectifier.Chi Trans PHC-150

T201

.YAP,TM IMS

V101 Cell, photoelectric: type 919; vacuum phototube. Produces a current pro- portional to amount of light incident on the photosensitive surface.

Type 919

V102 Tube, electron: Wemco WL-759; cold cathode gas triode. Pulse generator and pre- amplifier; pulse rate proportional to current

through V101.

Wemco WL-759

V103 Tube, electron: JAN-5Y3GT; duo-diode rectifier. &+ rectifier. JAN-5Y3GT V208

V104 Tube, electron: JAN-0C3; diode

voltage regulator. With V105, regulates &+• for V101, V102, and V108. JAN-0C3 V203

V105 Tube, electron: JAN-088; diode

voltage regulator. With V104, regulates B+

for V101, V102, and V108.

JAN- 003 V209, V210

V106 Tube, electron: JAN-6H6; duo- diode rectifier. Half-wave rectifier for calibrator. JAN-6H6 V206

V107 lamp, glow: 115v, 1/4 w; bulb

T-4 1/2 clear; double contact

bayonet base.

Generates calibration

pulses. Type Ne-48 V207

V108 Tube, electron: JAN-2050; thyratron. Electronic switch; discharges 0111 once for each pulse, producing a current whose average

value is proportional to the pulse rate.

JAN-2050 V201

V109 Tube, electron: JAN-6B4G; triode power amplifier.

Amplifies signal for transmission. JAN-6B4G

B-13
Appendix II Parts W101 to XI09

AN/GMQ-10

B-4. IDENTIFICATION OF PARTS FOB TRANSMISSOMETER RECEIVER R-547/GMQ-10

AND AMPUFIER- POWER S0PPLI AM-809/GMQ-10 (cent.)

Symbol Name of Part and Description Function of Part Type Number Other

(JAN or Mftr) Identical

Parts

W101

1102

1103

W104

WIRES AND INTERCONNECTING CABLES

Cable assembly, special purpose:

6 *16 AWG stranded copper cond; 600 v working; type SO neoprene

jacket; 12 ft ig excluding ter- minations; AN3106A-22-5P con- nector w/AN3057-12 cable clamp on

one end, AN3106A-22-5S connector w/milled cap at other end.

Cable assembly, power: type SO

cable; 2 *16 AWG stranded copper

cond; 600 v working; 16 1/2 ft

lg excluding terminations; stripped 1/2" on one end and

solder lugs on other.

Cable assembly, special purpose: 6 *16 AWG stranded copper cond; 600 v working; type SO neoprene

Jacket; 3 ft lg excluding ter- minations; AN3106A-22-5S connector w/AN3057-12 cable clamp

on one end, other end terminated

with solder lugs.

Not used.

Cable between pulse-amplifier unit and receiver

amplifier.

Carries ac power to hood heater HB101.

Cable between receiver

amplifier and terminal

block E106.

C-H

FL3048

C-H

FL4123

C-H

FL2955

SOCKETS

X101 Socket, tube: 4 contact, 2 large Socket for V101. and 2 medium; round molded

steatite body; silver pi phosphor

bronze contacts.

X102 Same as X101. Socket for V102.

Amphenol X102

49-8SS4

X103 Socket, tube: octal. Socket for V103. TSB8T101 X104, X105, X106, X1Q8,

X109, X201,

X202, X203, X204, X205, X206, X208, X209, X210, X301

X104 Same as X103. Socket for V104.

X10S Same as X103. Socket for V105.

X106 Same as X103. Socket for V106.

X107 Socket, tube: neon lamp; double contact candelabra

bayonet; brass body; 105-

125 v, 1/4 w.

X108 Same as X103.

Socket for V107.

Socket for V108.

X109 Same as X103. Socket for V109.

Dialco X207

65-10

B-14
AN/GMQ-10 Appendix II

(torts A20I to Q13

B-5. IDENTIFICATION OF PARTS FOR TRANSM7SSOMETER INDICATOR ID-353/GMQ-10.

Symbol Name of Part and Description Function of Part Type Number

(JAN or Mftr)

STRUCTURAL PARTS

A201 Cabinet: steel, painted gray: in- dicator recorder. Cabinet for indicator unit

and recording meter M203. C-H

FL2944

A202 Panel: mounting for recording

meter; steel; 17 1/2” high x 19" wd x 1/8" thk.

Mounting panel for recording meter M2 03. FL4305

A203 Panel: blank; steel; 7“ high x

19" wd x 1/8" thk. Blank panel covering volt- age-regulating transformer

T202.

C-H

FL3646

A204 Bracket, mounting: for transformer; steel; 19 3/4" lg x

1 1/4" wd x 5/16" thk.

Mounting bracket for transformer T202. (2 required) C-H

FL3647

CAPACITORS

C201 Same as C103. (Capacitor, fixed: mica dielectric; 470 ramf ± 10%; 500 vdcw.

)

Coupling between V205 and

V201.

C202 Capacitor, fixed: silvered mica

dielectric; 2700 mmf±5%; 500 vdcw. Discharge capacitor for V201; with R217 determines charge

per pulse through V201.

Sprague

Type MS

C203 Same as C105. (Capacitor, fixed: paper dielectric; 4 mf±10%; 600 vdcw.

)

Smooths current flow througn R206 (also R205 and R205A).

C204 Same as Cl 11. (Capacitor, fixed: paper dielectric; 100,000 mmf ±

10%; 600 vdcw.

)

With R211, forms an RC circuit whicn smootns the voltage applied to grid of V202.

C205 Capacitor, fixed: mica dielectric;

1000 mmf±10%; 500 vdcw. Couples feed-back signal de- veloped across R204 to control grid of V204.

CM30B102K

C206 Capacitor, fixed: mica dielectric; 100 iranf ± 10%; 500 vdcw. Couples signal at S203 to control grid of V204. CM20B101K

C207 Same as C206. Coupling capacitor between

V204 and V205.

C208 Capacitor, fixed: mica dielectric; 4700 mmf ± 10%; 500 vdcw. Blocking capacitor for

J203. CM35B472K

C209 Same as C102. (Capacitor, fixed: mica dielectric; 10,000 mmf±10%; 300 vdcw.)

Charging capacitor for V207 during forward half-cycle

and bypass capacitor for reverse half-cycle.

C210 Same as C201. With R229, forms a highpass filter circuit.

C211 Same as C203. Filter capacitor in B+ supply.

C212 Same as C203. Filter capacitor in B+ supply.

C213 Same as Cl 12. (Capacitor, fixed: paper dielectric; 2 mf + 20% - 10%; 600 vdcw.)

Blocking capacitor; prevents

current from rectifier CR301 from flowing througn R232

or S206 and actuating relay

K301.

Other Identical

Parts

C301

C207

B-15
Appendix IX Parts C214 to H209 AN/GMQ-10

B-5. IDENTIFICATION (F PARTS FOR IRANSMISSOMETER INDICATOR ID-353/GMQ-10. (cont.)

Symbol Name of Part and Description Function of Part Type Number

(JAN or Mftr)

C214 Same as C209. Bypasses to ground any high frequency components

present in output of T202 which might disturb calibrator; stabilizes pulse

frequency of calibrator on HIGH sensitivity range.

E^WCAlEmPMEffl

E201 Same as E107. (Holder, fuse: extractor post type for single

3AG fuse.)

Fuse holder for F201.

E202 Same as E104. (Board, terminal: general purpose; 2 brass nickel

pi screw term with solder tabs.)

115 vac input terminals

for use in bencn tests.

E203 Board, terminal: general purpose; 9 brass nickel pi screw

term.

Terminal board for inter- connecting cables.

Jones HB 9-141-B-2

E204 Lamp, incandescent: switcnboard;

145 v, 15 w; bulb T6 clear; candelabra screw base.

Illuminates record chart

in M203. Code 15T6, 145 volt

E205 Board, terminal: general purpose; 9 pairs solder lug term. Mounting board for small components. C-H

FL3011

E206 Board, terminal: general purpose; 14 pairs solder lug term. Mounting board for small components. C-H

FL3012

FUSES

F201 Same as F101. (Fuse, cartridge:

1-1/4 amp, 250 v; one time; high time lag.)

Fuses ac power line input

to indicator.

HARDWARE PARTS

H201 Same as H146. (Mounting, switch:

steel, cad pi.) Mounting for S207.

H202 Same as H149. (Cover, switch:

steel, cad pi; L-shaped.) Protective cover for S207.

H203 Same as H156. (Knob: bar; black

bakelite; for 1/4" shaft.) Knob for S202 and S203.

(2 required)

H204 Fastener: latch; cabinet; steel, cad pi. Fastener for doors of cabinet A201.

ParMet Prod

DL- latch

H205 Handle: door; steel, chrom pi. Handle for doors of cabinet A201. ParMet Prod DL-Door Pull

H206 Screw, machine: slot drive: RH; steel, nickel pi; l/4"-20 thd; 3/8" lg; all threaded.

Screw for mounting T202

to bracket A204.

(6 required)

H207 Shaft lock: brass, nickel pi; 3/8"; locks 1/4" shafts. Lock for potentiometers

R209, R217, and R224

(as required).

Mi 1 len 10061

H208 Same as H154. (Clamp: capacitor

mtg; footed.) Clamp for mtg C203.

(2 required)

H209 Same as H208. Clamp for mtg C211.

(2 required)

Other Identical

Parts

H326

B-16
AN/GMQ-10

Appendix II Parts H210 to N203

B-5. IDENTIFICATION OF PABTS FOR TRANSMISSOMETER INDICATOR ID-353/GMQ-10. (cont.)

Symbol Name of Part and Description Function of Part Type Number

(JAN or Mftr)

R210 Same as H208. Clamp for mounting C212.

(2 required)

JACKS APS) CONNECTORS

J201 Connector, female contact: 4 round

female contacts. Connector at indicator

for M203. AN3102A-18-4S

J202 Same as J101. (Connector, male

contact: 6 round male contacts.) Connector at indicator for lines from terminal board

E203.

J203 Same as J105. (Jack, telephone:

for two cond 0.25" diam plug.) Test Jack for output of amplifier stages.

J204 Same as J203. Test Jack for input signal.

mgcjogs

L201 Same as L101. (Reactor: filter

choke; 12 hy, 105 ma; 150 ohms dc resistance; 2500 v RUS test; hermetically sealed metal case.)

Filter choke in B+ supply.

L202 Reactor: filter choke; 0.8 hy, 350 ma; 19.5 ohm dc resistance; 2500 v RMS test; hermetically

sealed metal case.

Blocks pulse signal from

S205.

PETERS

GE 7481579

H201 Same as M101. (Meter, arbitrary

scale: transmission; dc; range 0

to 100; one ma full scale deflection; accuracy 1% of full scale deflection.

Indicates transmission

reading.

M202 Same as M102. (Meter, frequency

indicator: ac, 56 to 64 cycles;

vibrating reed movement; her- metically sealed; scale calibrated

in CALIBRATION SETTING of 84 to 96.)

Indicates calibration

setting corresponding to

ac line frequency.

M2 03 Meter, amneter : dc; recording; 0 to 1 ma; metal flush mtg case; accuracy 1% of full scale reading;

1500 ohms resistance; self-contained chart drive, 7-day spring- wound motor.

Records transmission

reading. EsterlineAngus

Model A. W.

QUARTS

N201 Chart: for recording transmission;

tine graduated in 15 min intervals with hours Indicated by blue numerals, transmission axis graduated

in 2% intervals to 100% with 10%

intervals indicated by bold lines; suitable for 15 days record;

5 31/32" w x 103 ft lg.

Record chart for M203. Gubelman

Publishing

Co. Chart 554313-C or EsterlineAngus Chart 4313-C

N202 Scale, transmission conversion: re- corder type; for 500-ft. baseline;

has scales for DAY and NIGHT, LOW

and HIGH sensitivity ranges; methyl

methacrylate with bracket mtg.

Permits conversion of transmission reading to visual range at recorder.

(Not com- mercially

manufactured.)

N203 Scale, transmission conversion: desk type; for 500-ft baseline; has scales for DAY and NIGHT, LOW and HIGH sensitivity ranges and percent

Permits conversion of transmission reading to visual range at desk.

(Not com- mercially

manufactured.) TRANSMISSION; methyl methacrylate.

Other Identical

Parts

B-17
Appendix II Parts P201 to R210

APl/GBQ-10

B-5. IDENTIFICATION OF PARTS FOR TRANSMISSOMETER 1PHHCAT0R ID-353/GMQ-10. (cent.)

Symbol Name of Part and Description Function of Part Type Number

(JAN or Hftr) Other Identical

Parts

FLOSS

P201 Connector, male contact; 4 round

male contacts; with cable clamp.

Plug for .KOI (ora cable

W201). AN3I06A-18-SPs/A P-3057- 10

P202 Same as P103. (Connector, female

contact: 6 round female contacts; with eable clamp,)

Plug for J202 (on cable

W204).

P203 Connector, male contact: 2 rectangular parallel contacts;

straight; 15 amp, 115 v; part of W20S.

Plugs into ac power

source. Hubbell 7057

lESmSSSL

S201 Resistor, fixed: composition;

18 meg ± 10%; 1/2 w. Grid resistor for ¥201. RC20BF186K

R202 Resistor, fixed: composition;

2.2 meg ± 10%; 1/2 w. Stopping resistor for

V201; reduces grid current during periods of conduction of the tube.

RC20BF225K R230

8203 Resistor, fixed: composition; 270,000 ohm ± 10%; 1/2 w. Quenches discharge

through V201. RC20BF274K

8204 Same as 8112. (Resistor, fixed: composition; 100,000 ohm ± 10%; 1/2 w.)

Limits suppressor grid

current in V201 during

discharge; develops feed-back signal.

R205 Resistor, variable: composition; 100,000 ohsi ± 10%; 2 w; slotted, round metal shaft; linear taper.

With 8205A makes sensitivity of indicator on HIGH

sensitivity range five times as sensitive as on LOW sensitivity range.

AB

JLU1041

8205A Resistor, fixed: wirewound; precision; 550,000 ohms ± 1%; 1/2 w.With R205 makes sensitivity of indicator on HIGH sensitivity range

five times as sensitive

as on LOW sensitivity

range.

RB13B55002F

8206 Resistor, fixed: wi rewound; precision; 150,000 ohms ± 1%; 1/2 w. LOW range sensitivity

resistor. RB13B15O02F

8207 Same as RU7. (Resistor, variable: composition; 1000 ohm ± 10%; 2 w; slotted round metal shaft; linear

taper.)

Grid bias adjustment

potentiometer for ¥201.

R2O0 Resistor, fixed: wirewound; 100 ohm ± 5%; 1 w. Determines minimum grid

bias of ¥201. 8U4B101

J

R210

R209 Resistor, variable: wirewound;

50 ohm ± 10%; 2 w; taper A; slotted round shaft.

Permits adjustment of electrical zero of the bridge circuit by varying the "no-signal"

voltage on grid of V202.

RA20A1SD500AK

8210 Same as R208. Limits range of zero ad- justment (R209).

B- IB
AN/GMQ-10 Appendix II Parts R211 to R229

B-5. IDENTIFICATION OF PARTS FOB TRAP6MISSOMETER INDICATOR ID-353/GMQ- 10. (cont.)

Symbol Name of Part and Description Function of Part Type Number

(JAN or Hftr)

R211 Resistor, fixed: composition; 4.7 meg ± 10%; 1/2 w. With C204, forms an RC circuit which smooths the voltage applied to grid

of V202.

RC20HF475K

R212 Resistor, fixed: eomDOsition; 3000 ota ± 10%; 1/2 w. Introduces degeneration in V202 to improve linearity. RC20BF302K

R213 Resistor, fixed: wi rewound; precision; 200, 000 ©hn ± 1%; 1/2 w.

Fixed arm in the bridge;

plate load of V202. RB13B20002F

R214 Resistor, fixed: wirewound;

10,000 ohm i 5%; 30 w. Fixed arm in the bridge;

plate load of V203. RW34F103

R215 Resistor, fixed: composition;

1500 ohm ± 5%; 1 w. Substitutes for resistanceof H203. RC30BF152J

S216 Resistor, fixed: wirewound; precision; 50,000 ohms ± 1%; 1/2 w. With R217 and R218, forms

EH- potential divider. RB13B50001F

R217 Resistor, variable: composition; 50,000 ohm ± 10%; 2 w; slotted, round metal shaft; linear taper.With R216 and R218, forms &+ potential divider; ad- justs calibration by varying B+ to plate of KOI.

AB

JLD5031

R218 Same as R216. With R216 and R217, forms B+ potential divider.

R219 Not used.

R220 Resistor, fixed: composition;

100,000 ota ± 10%; 1 w. Plate load resistor for ¥204. RC30BFKMK

R221 Resistor, fixed: composition; 470,000 ohm ± 10%; 1/2 w. Dropping resistor for po- tential on screen grid of V2Q4.

RC20BF474K

R222 Same as R101. (Resistor, fixed: composition; 1 meg ± 10%; 1/2 w») Grid resistor for V204.

R223 Same as RIOS. (Resistor, fixed: composition; 10,000 ohm ± 10%;

1 w.)

Cathode bias resistor for V204.

R224 Same as R217. Plate load resistor for

¥205; adjusts signal

strength to grid of V201.

R22S Same as R222. Grid resistor for V205,

Other Identical

Parts

R218

R224

R226 Resistor, fixed: composition; 470 ohm ± 10%; 1/2 w.

R227 Resistor, variable: composition;

5 meg ± 20%; 2 w; slotted, round

metal shaft; linear taper.

R228 Same as 8110. (Resistor, fixed: composition; 47,000 ohm ± 10%; 1/2 w.)

R229 Same as R228.

Cathode bias resistor for RC20BF471K

V205.

With R230, adjusts frequen- ab

cy of the HIGH sensitivity JUJ5052 range calibration signal to one-fifth of LOW sensitivity

range calibration frequency.

Limits current through V207

when R227 and R230 are shorted.

With 0210, forms a highpass filter circuit.

B-19
Appendix II Parts R230 to T202

AN/GMQ-10

B-5. IDENTIFICATI ON CF PARTS FOB IRANSMXSSQIffiTER IM5ICATC® ID-353/GKQ-10. (coat.)

Symbol Name of Part and Description Function of Part Type Number

(JAN ©r Mftr)

R230 Same as R202. With 8227, adjusts frequency of the HIGH sensitivity

range calibration signal to one-fifth of U)W sensitivity

range calibration frequency.

R231 Resistor, fixed: wirewound; Ballast resistor for V209 RN32F352 or 3500 ohm ± 5%; 12 w. and V210. RW32G352

Other

Identical

Parts

S232 Resistor, fixed: wirewound;

500 ohm ± 5%i 10 k. Loads transmission line to BSJ31F501 reduce effects of line noise.

SWITCHES

S201 Same as S103. (Switch, toggle: SPDT.) Switches recording meter

SS203 ia or out of circuit.

S202 Switch, rotary; position #1 —

3A; position *2--3A; 3 amp, 110 vac.

Selects range of sensitivity

for operation; actuates marker pen on H203 to indi- cate range of operation; determines frequency of calibrator.

tfossman DP

4402TU-NT- SPOT

S203 Same as S1G4. (Switch, rotary; position *1—1C, position *2

1A; 3 amp, 110 vac; momentary

contact in position *2.)

Energizes calibrator and re- places pulse-amplifier signal on grid of V204 with

calibrator signal.

S204 Same as S102. (Switch, toggle: DPST.) Main ac power switch.

S205 Switch, toggle: SPST; normally

off, momentarily on. Actuates power relay K301

at projector power supply. ST12C

S206 Same as S205. Shorts input signal to amplifier for check on electrical zero of bridge

circuit.

S207 Not used.

T201

T202

Same as T103. (Transformer,

poster: filament and plate type; input 117 v, 50/60 eye, single

ph; sec *1, 740 vCT at 150 ma, see #2, 5 vCT at 3 amp, see *3, 6.3 vCT at 4 amp, sec *4, 6.3 vCT at 1 amp; hermetically

sealed metal ease.)

Transformer, power regulating:

fixed; input 95-125 volts, 57-

63 eye, single phase, 0.120

kva; output 115 v, 1.04 amp; regulation ±1-1/2% on 57-63 eye; 1500 v insulation test voltage; vacuum varnish impregnated; enclosed, steel case; compensated

for variable input frequency.

TRANSFORMERS

Supplies ac power to fila- ments and B+ rectifier.

Regulates voltage of input

ac power. Sola Elec

6068

T301

B-20
AlVGtKhlO Appendix II Parts V201 to W2G3

B-5. IDENTIFICATION OF PARTS FOB TRANSMIS SOtlETER INDICATOR ID-353/GHQ-10. (eont.)

Symbol Name of Part and Description Function of Part T^ps Number

(JAN or aftr)

V201 Same as V108. (Tube, electron:

JAN-2050; thyratron.

)

V202 Tube, electron: JAN-6J5;

triode.

V203 Same as V104. (Tube, electron:

JAN-0C3; diode voltage regulator.)

V204 Tube, electron: JAN-6SJ7;

pentode.

V205 San® as V202.

V206 Same as V106. (Tube, electron:

JAN-6R6; duo-diode rectifier.)

V207 Same as V107. (Lamp, glow: 115 v, 1/4 w; bulb T-4 1/2 cleaT; double contact bayonet base.)

V208 Same as V103. (Tube, electron:

JAN-5Y3GT; duo-diode rectifier.)

V209 Same as V105. (Tube, electron:

JAN-0D3; diode voltage regulator.)

17210 Same as V209.

VACPDM TUBES

Electronic switch; dis- charges C202 once for each

pulse, producing a cur- rent whose average value

is proportional to the pulse rate.

Produces a current through JAN-6J5

SE01 proportional to the voltage developed in the cathode circuit of V201.

Permits elimination of the lio-signal" current through

tGOl; regulates voltage

across V202.

First-stage pulse signal JAN-6SJ7

amplifier.

Second-stage pulse signal

amplifier.

Half-wave rectifier for calibrator.

Generates calibration

pulses.

B+ rectifier.

Kith V210, regulates B+ for V201, V202, and V203.

With V209, regulates B+ for

V201, V202, and V203.

Other Identical

Parts

V205

W201

W202

W203

WIRES AM) INTERCONNECTING CABLES

Cable assembly, special purpose:

4 K 16 AWG stranded copper eond; 600 v working; type SO neoprene

jacket; 43" lg excluding terminations; AN3106A-18-5P connector with AN3057-10 cable clamp on one

end, other end terminated with

solder lugs.

Cable assembly, power: type SO

cable; 2 a 16 AWG stranded copper

cond; 600 v working; 44" lg ex- cluding terminations; solder

lugs on one end, other end stripped 1/2".

Not used.

Cable between indicator

and M203.

Cable between E203 and

E204.

C-H

FL2941

C-H

FL3064

B-21
Appendix II Parts W204 to M203C

APJ/GIWJ-IO

B-5. IDENTIFICATION <F PASTS FOB TRANSHISSOMETER INDICATOR ID-353/GMQ-10. (coat.)

Symbol Name of Part and Description Function of Part Type Number

(JAN or Hftr)

W204 Cable assembly, special purpose: 6 *16 ANG stranded copper cond; 600 v working; type SO neoprene

jacket; 50" lg excluding terminations; AN3106A-22-5S connector with AN3057-12 cable clamp on one

end, solder lugs on other end.

Cable between indicator

and terminal block E203. C~HFL2942

8205 Cable assembly, power: 2 *16 AWG

stranded copper cond; type SO

cable; 600 ¥ working; 10 ft. lg excluding terminations; Rubbell connector *7057 on one end, solder lugs on other end.

Cable from power source

to £203,. C~HFL4367

SOCKETS

X201 Same as X103, (Socket, tube: octal.) Socket for ¥201.

X202 Same as X201. Socket for V202.

X203 Same as X201. Socket for ¥203.

X204 Same as X201, Socket for V204.

X205 Same as X201. Socket for V205.

X206 Same as X201. Socket for ¥206.

X207 Same as X107. (Socket, tube: neon lamp; double contact can- delabra bayonet; brass nickel pi body; 105-125 », 1/4 w.)

Socket for V207.

X2O0 Same as X201. Socket for V208.

X209 Same as X201. Socket for V2Q9.

X210 Same as X201. Socket for V210.

B-6. IDENTIFICATION CF PARTS FCR RECORDER.

Symbol Name of Part and Description Function of Part Type Number

(JAN or Mftr)

H203A Pen, recorder: glass capillarytubing point; capillary tube

brass, nickel pi; indicator target above pen point; part of meter 8203.

Records reading of meter 1203.

EsterlineAngus 8510

H203B Pen, marker: glass capillarytubing point; brass, chromium

pi; part of meter 8203.

Records indication of sensitivity range of indicator.

EsterlineAngus

9892

I203C Accessory kit, recorder: consists of one 2-ounce bottle red recording ink, one ink reservoir filler, one pen filler, one glass pen tip.Inking kit for meter

M203. EsterllneAngus "AW" Accessory Kit Code ZEMHO

Other Identical

Parts

Other Identical

Parts

B-22
AN/GMQ-10 Appendix II Parts M203D to A315

B-6. IDENTIFICATION OF PABTS FOB RECORDER, (cont.)

Symbol Name of Part and Description Function of Part Type Number

(JAN or Mftr)

ffiOSD Pen tip, recorder: glass capillarytubing point; part of meter 1203. Replacement tip for re- corder pen. EsterlineAngus 62C

M2O0E Reservoir, ink: brass, tin pi; part

of meter &E03. Holds ink for recorder

pen. EsterllneAngus 8516

B-7. IDENTIFICATION OF PARTS FOB TRANSMISSOKETER PBOJECTOB ML-461/GMQ -10 AW POWER SUPPLY PP-908/GMQ-10.

Symbol Name of Part and Description Function of Part

STRUCTURAL PARTS

Type Number

(JAN or Mftr)

A301 Housing: lamp; cast aluminum, anodized.Holds projector lamp. C-H

FL3144

A302 Hood: lamp; sheet aluminum, anodized. Stray light shield; protects lamp E301. C-H

FL3317

A303 Cover: rear; cast aluminum, anodized. Cover for A301. C-H

FL3145

A304 Plate, base: brass. Mounting base for projector. C-H

FL3296

A305 Table, mounting: brass. Mounting table for projector. C-H

FL3295

A306 Ring, retainer: steel, cad pi. Holds projector lamp E301 in position. C-H

FL3644

A307 Cabinet: projector power supply; cast aluminum. Cabinet for projector

power supply unit. C-HFL3609

A306 Bracket, mounting: for transformer. Mounting bracket for transformer T301. C-H

FL3606

A309 Same as A113. (Mounting sub- assembly: front; aluminum.) Front mounting base

for cabinet A307.

A3 10 Same as A114. (Mounting sub- assembly; rear; aluminum.)

Rear mounting base for cabinet A307,

A311 Same as A116. (Terminal box with cover: gray cast iron.) Waterproof housing for terminal blocks E20S and E306 and circuit breaker

K302.

A312 Same as A117. (Hub plate, conduit: blank; gray cast iron.) Hub plate for A311.

A3 13 Same as A118. (Hub plate, conduit: one 2 1/2" threaded conduit hub; gray cast iron.)

Hub plate for A311.

A3 14 Same as A119. (Hub plate, conduit: one 1” threaded conduit

hub; gray cast iron.)

Hub plate for A311.

A31S Same as A120. (Plate, mounting:

sheet steel.) Mounting plate in A311

for terminal blocks and circuit breaker.

Other

Identical

Parts

Other Identical

Parts

B-23
Appendix II Parts B301 to K502

AR/GMQ-W

B-7. IDENTIFICATION OF PABTS FOR TRANSMISSOMETES PROJECTOR ML-461/G6SJ-10 AND POWEB SOPPUf PP-908/GMQ-10, (cent.)

Symbol Name of Part and Description Function of Part type Number

(.IAN or Mftr)

pros

saoi Motor, sc: synchronous type: 20 ounce-inches torque at 1/60 rpsn; 115 v, 60 eye, single phase, 2.5 w, sealed-in lubrication; high starting torque.Opens S302A hourly. Hayden

1600A

QAPMlim.

C301 Same as C205. (Capacitor, fixed: mica dielectric; 1000 mxtf ± 10%; 500 vdew.)

Blocking capacitor for

J301.

BECHHES&

CR301 Rectifier, metallic; input 26 vac, 60 eye; output 19 vdc, 225 ma. Supplies dc power to operate K301. Fed Tel & Rad 102B1HX1

ELECTRICAL EQUIPMENT

E301 tamp, incandescent: 6 v, 120 w; bulb PAR-64 clear; C-6 filament; burn filament vertical.Projector lamp. GE 120 BAS Transmissometer

E302 Same as E107. (Holder, fuse: ex- tractor post type for single SAG

fuse.)

Fuse holder for F301.

E3Q3 Board, terminal: general purpose;

12 brass nickel pi screw term. Terminal board for in- terconnecting cables.

Jones HB 12-141-0-2

E304 Same as E102. (Insulator, standoff: conical shape; white porcelain glazed.)

Insulator for mounting

C3Q1.

E305 Same as E109. (Board, terminal: general purpose; 8 brass screw

term.

)

Terminal board for field

cabling.

E306 Same as E110. (Board, terminal: general purpose; 4 brass screw

term.

)

Terminal board for field

power cable.

FUSES

F301 Fuse, cartridge: 2 amp, 250 v; one time; high time lag. Fuses ae power line input

to projector power supply. Buss MDL-2

flABPWAR^PAgJS

H301 Pin, hinge: aluminum; 1/4" diam

x 6 5/32" lg; drilled with 3/32" diam hole 3/32" from each end.

Hinge pin for ewer A303. C-H

FL3302

H302 Screw, machine: hex head; slot drive; captive; brass, nickel

pi; 5/16"-18 thd; 1-1/8" lg; necked portion 7/32" diam!

3/8" threaded portion.

Holds cover on housing

A301. (4 required) C-HFL3303

B-24

Otter Identical

Parts
AN/GMQ-10 Appendix II Parts H303 to H320

B-7. IDENTIFICATION OF PARTS FOR TRANSMISSOMETER PROJECTOR ML-461/GMQ-10

AND POWER SUPPLT PP-908/GMQ-10. (cont.)

Symbol Name of Part and Description Function of Part Type Number

(JAN or Bftr)

H303 Screw, machine: hex head; brass, nickel pi; l/2"-13 thd; 1-3/4" lg; threaded portion 1-1/4" lg.

Mounting screw to hold housing A301 in yoke of base plate A304.

(2 required)

H304 Screw, machine: slot drive; RH; steel, cad pi; *8-32 thd; 3/8"

Ig; all threaded.

Mounts hood A302 to housing A301.

(9 required)

H305 Gasket: lamp; fiber. Gasket between lamp E301

and housing A301. C-HFL3308

H306 Screw, machine: slot drive; Fil

H; brass, nickel pi; *10-24 thd; 3/8" lg; all threaded.

Mounts retaining ring

A306 in housing A301.

(3 required)

H3Q7 Washer, flat: fiber; round, 11/64" ID, 25/64” OD, 0.02” thk. Makes H306 captive.

(3 required)

H308 Fitting, conduit: flexible cable

to conduit; aluminum; 3/4” male

thd.

Watertight entrance

fitting. C-H

CGV2352

H309 Bushing: reducer; rubber. Bushing for fitting

H308. C-H

Bushll3D

roio Fitting, conduit: reducer; steel, cad pi; 1" to 3/4". Reduces size of threaded hole. C-H

RE32 ran Gasket: cover; silicone-treated

asbestos; round. Gasket for cover A303. C-H

FLA306

rai2 Screw, machine: slot drive; hex

head; bronze, nickel pi; 3/8"-24

thd; 2" lg; all threaded; oval

point.

Horizontal alignment

adjustment screw.

(2 required)

C-H

FL3301

H313 Nut, hexagon: bronze, nickel pi; 3/8"-24 thd; 3/8" thk; 11/16" wd across flats.

Locking nut for hori- zontal adjustment

screws. (4 required)

C-H FU847

rai4 Screw, machine: hex head; bronze,

nickel pi; 3/8"-24 thd; 2-3/4" lg; all threaded; oval point.

Vertical alignment

adjustment screw.

(2 required)

C-H

FL3300

H315 Same as H313. Locking nut for vertical adjustment screw.

(4 required)

rai6 Nut, hexagcn: brass, nickel pi; l/2"-13 thd; 1/2" thk; 5/8" wd

across flats.

Nut for studs on mounting table A305.

(4 required)

H317 Nut, hexagon: bronze, nickel pi; 5/8"- 11 thd; 5/8" thk; 1” wd

across flats.

Nut for center stud on mounting table A305.

H318 Same as H126. (Lock: key latch; ward mechanism.)

Latch for cabinet A307.

H319 Same as H127. (Key, lock: brass.) Key for H318.

ra2o Screw, machine: slot drive: RH; steel, qickel pi; 3/8"-16 thd;

1" lg; all threaded.

Fastens mounting brackets

A308 inside cabinet A307.

(4 required)

V

Other Identical

Parts

H333

H334

H335

H315

B-25
Appendix II Parts H321 to H338 AN-GMQ-10

B-7. IDENTIFICATION OF PARIS F08 TRANSMISSCMETEB PROJECTOR ML-461/GBQ-10

At® POWER SUPPLY PP-908/GMQ-10. (cont.)

Symbol Name of Part and Description

EQ21 Nut, hexagon: steel, nickel pi; 3/0"- 16 thd; 5/16" thk; 5/8” wd across flats,

B322 Same as H125. (Gasket: door; silicone- treated asbestos.)

H323 Same as H153. (Screw, machine:

slot drive; hex head; steel, nickel pi; 3/8"-16 thd; 3/4” Ig; all threaded.)

H324 Same as H146. (Strike, lock: steel; L-shaped.)

H325 Not used.

H326 Same as 1£06. (Screw, machine;

slot drive; RH; steel, nickel pi; l/4"-20 thd; 3/8" Ig; all threaded.)

H327 Same as H152. (Nut, hexagon:

brass, cad pi; l/2"-13 thd; 1/2"

thk; 5/8" wd across flats.)

H328 Same as H128. (Bolt, double ended: stainless steel; l/4"-20

thd; 2-3/4" Ig; 3/8" threaded

length each end; less nuts.)

H329 Same as H129. (Nut, hexagon:

steel, chromium pi, l/4"-20 thd; 1/4" thk; 7/16" wd across flats.)

H330 Screw, machine: slot drive; RH; steel, nickel pi; 5/16"-18 thd; 3/4" lg; all threaded.

1031 Nut, hexagon: steel, nickel pi; 5/16"- 18 thd; 5/32" thk; 9/16"

wd across flats.

H332 Same as H156. (Knob: bar; black

bakelite; for 1/4" shaft.)

H333 Same as H308.

H334 Same as H309.

H335 Same as H310.

H336 Same as H136. (Fitting, conduit: flexible cable to conduit;

brass; 1" male thd.)

H337 Same as H137. (Bushing: reducer;

rubber.

)

H338 Same as H138. (Washer, gland:

steel, cad pi; 1" ID, 1 3/8" OD, 0.925" thk.)

Function of Part Type Number

(JAN or Mftr)

Nut for screws B320.

(4 required)

Gasket for door of cabinet A307.

Screw for mounting sub- assemblies A309 and A310

to cabinet A307.

(6 required)

Strike for latch H318.

Screw for mounting volt- age-regulating transformer T301 to bracket

A308. (6 required)

Nut for studs on mountings A309 and A3 10.

(4 required)

Hinge bolt for door of cabinet A307.

(2 required)

Nut for H328.

(4 required)

Screw for mounting pro- jector power supply unit

in cabinet A307.

(3 required)

Nut for H330,

(3 required)

Knob for S303.

Watertight entrance

fitting.

Rubber bushing for H333.

Reduces size of thread- ed hole.

Watertight entrance

fitting.

(2 required)

Bushing for H336.

(2 required)

Permits tightening of H336 without distorting

H337. (2 required)

Other Identical

Parts

B-26
AN/GMQ-10 Appendix II Parts H339 to S302

B-7. IDENTIFICATION CF PARTS FOR TRANSMISSOMETER PROJECTOR ML-461/GMQ-10

AND POWER SUPPLY PP-908/GMQ-10. (cont.)

Symbol Name of Part and Description Function of Part Type Number

(JAN or Mftr)

H339 Same as H161. (Nut, check: hexagon; steel, cad pi; 1”, pipe thd.) Locks fitting H336 in place. (2 required)

H340 Same as H164. (Gasket: cower; rubber; 3/8” diam, 46" Ig.) Gasket for cover of terminal box A311.

H341 Same as Hi 65. (Gasket: hub; cork.) Gasket between hub plates and terminal

box A311.

(3 required)

JACKS AND CONNECTORS

J301 Same as J105. (Jack, telephone:

for two cond 0.25” diam plugs.)

Signal line test jack.

J302 Same as J104. (Connector, female

contact: 2 curved contacts; ac- cepts standard 2- rectangular

contact male plug.)

Convenience outlet for

ac power.

RELAYS AND CIRCUIT BREAKERS

K301 Relay, armature: contact ar- rangement IB; contact rating 1.5 amp at 115 v, 60 eye inductive

load; single wound coil, 6 vdc, 7.5 ma; 300 ohm dc resistance;

octal socket base; hermetically

sealed metal envelope.

Breaks ac power to volt- age-regulating transformer T301 for back- ground check (actuated

by S205)

.

KL Model

106-Special

K302 Same as K101. (Circuit breaker: magnetic; 2 pole; 125 vac, 5 amp; molded black bakelite case; toggle action, manual reset.)Circuit breaker for in- put power.

MEIERS

K301 Same as M101. (Meter, arbitrary

scale: transmission; dc; range 0

to 100; one ma fall scale deflection; accuracy 1% of full

scale deflection.

Indicates transmission

reading (in series with

M101).

SWITCHES

S301 Same as S102. (Switch, toggle:

DPST.) Main ac power switch.

S302 Switch subassembly: for adjustable periodic lamp cutoff; consists of synchronous motor

(B301) and SPST normally off sensitive switch (S302A); motor

115 v, 60 eye, 1/60 rpm.

Consists of B302 and

S302A. Hayden Series

5800 Repeat

Interval Timer

Other Identical

Parts

B-27
Appendix II Parts S302A to X301 AN/GMQ-10

B-7. IDENTIFICATION OF PARTS FOR TRANSMISSOMETER PROJECTS ML-461/GSfQ-lO AND POWER SUPPLY PP-908/GMQ-1Q. (cent.) ((

Symbol Name of Part and Description Function of Part Type Number

(JAN or Mftr) Other Identical

Parts

S302A Switch, sensitive: SPST; 125 v, 10 amp; momentary action, nor- mally closed.Breaks ac power to volt- age-regulating transformer T301.

Micro Sw BZ-2RW13

S303 Switch, rotary: 1 pole, 5 po- sition; 10 amp, 150 v; silver alloy cont; ceramic body; solder lug term.Selects operating voltage for lamp E301.

Ohmi te ni-5

TRANSFORMERS

Sams as 1202. (Transformer, power regulating: fixed; input 95-125 volts, 57-63 eye, single

phase, 0.120 kva; output 115 v, 1.04 amp; regulation ±1-1/2% on 57-63 eye; 1500 v insulation test

voltage; vacuum varnish impregnated; enclosed, steel case; com- pensated for variable input

frequency.)

Supplies regulated ac voltage to T303.

Transformer, power: filament; 115

v, 60 eye, single ph; 1 output winding; sec 20 v, 0.05 amp; 2500

v insulation; hermetically sealed

metal case.

Supplies ac power to OR301. GE 7481529

Transformer, power: filament; 115

v, 60 eye, single ph; 1 input

winding, tapped to give outputs

of 4.8, 5.4, 6.0, 6.6, and 7.2 v at 25 amp; 1750 v Insulation; hermetically sealed metal case.

Reduces output voltage

of T301 to the operating voltage of lamp

E3Q1.

Raytheon 292-1602G1

WIRES AND INTERCONNECTING CABLES

W3Q1 Cable assembly, power: type SE, Connects ac power to C-H

style 0; 2 »6 AWG stranded E301. FL4122

copper cond, with *6 AWG strand- ed copper concentric sheath; type RH robber insulation; 600 v working; 10 ft lg excluding ter- minations; solder lugs on both

ends.

X301 Same as X103. (Socket, tube: octal.)

SOCKETS

Socket for K301.

B-28
THE NATIONAL BUREAU OF STANDARDS

Functions and Activities

The functions of the National Bureau of Standards are set forth in the Act of Congress, March

3, 1901, as amended by Congress in Public Law 619, 1950. These include the development and

maintenance of the national standards of measurement and the provision of means and methods

for making measurements consistent with these standards; the determination of physical constants and properties of materials; the development of methods and instruments for testing materials,

devices, and structures; advisory services to Government Agencies on scientific and technical

problems; invention and development of devices to serve special needs of the Government; and the

development of standard practices, codes, and specifications. The work includes basic and applied

research, development, engineering, instrumentation, testing, evaluation, calibration services, and

various consultation and information services. A major portion of the Bureau’s work is performed

for other Government Agencies, particularly the Department of Defense and the Atomic Energy

Commission. The scope of activities is suggested by the listing of divisions and sections on the

inside of the front cover.

Reports and Publications

The results of the Bureau’s work take the form of either actual equipment and devices or published papers and reports. Reports are issued to the sponsoring agency of a particular project

or program. Published papers appear either in the Bureau’s own series of publications or in the

journals of professional and scientific societies. The Bureau itself publishes three monthly periodicals, available from the Government Printing Office: The Journal of Research, which presents

complete papers reporting technical investigations; the Technical News Bulletin, which presents

summary and preliminary reports on work in progress; and Basic Radio Propagation Predictions,

which provides data for determining the best frequencies to use for radio communications throughout

the world. There are also five series of nonperiodical publications: The Applied Mathematics

Series, Circulars, Handbooks, Building Materials and Structures Reports, and Miscellaneous

Publications.

Information on the Bureau’s publications can be found in NBS Circular 460, Publications of

the National Bureau of Standards ($1.25) and its Supplement ($0.75), available from the Superintendent of Documents, Government Printing Office. Inquiries regarding the Bureau’s reports and

publications should be addressed to the Office of Scientific Publications, National Bureau of

Standards, Washington 25, D. C.