davidaulloa/AmericanStories huggingface dataset:
New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1922-08-06
The Condenser Talks

Question: using honeycomb coils,
p adfaa "a and sc secondary condenseTs DE-
The other evening 1 was listening in" TO
VIZ, and the signals were coming in. e1-
was about to retire and pulled out the
plug of the loud speaker. i was quite
astounded when I heard the signals come
in after the same was disconnected. OF
course they were very faint. but neverths-
less audible Would the inductance be-
tween the primary and secondary Of the
air sufficient to act on the tyn7panic mem
brane OF the human ear? 1 have noticed
Tungar rectiier which I am using sends
out hum or sound which corresponds to
'A"-second octave below middle c.
which, in order to create this sound must
vibrate approximately 10 times per sec
ond. 1 am using rectihed 11o-volt A. C.
and have been applying the same
theory to the aforementioned query. deal
please enlighten me ?--H. E. S.
Answer take it for granted that
you have fixed condenser across the
telephone leads in your set. If this
is the case, undoubtedly it was the
condenser which was doing the talk
ing This happens occasionally when
the plug has been pulled out of its
jack The vibration of the plates in
the condenser are sufficient to set up
vibrations in the air, corresponding to
the audible sounds in the telephone
circuit. Of course, this is very weak
and will not be heard very loudly. This
action will not take place in the
oscillating circuit, as the currents there
are of high frequency in character, and
above audibility. With regard to the
rectifer sending out constant hum,
corresponding to the note ga sec
ond octave below middle "C"-this is
approximately the frequency vibration
Of the 100 cycle alternating current cir
cult that you are using in conjunction
with the rectifier.
New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1922-08-06
British Radio Manufacturers
Get Two Years of Protection
No Foreign Receiving Apparatus To Be Licensed
During That Period; Concession Based ON
Agreement to Begin Broadcasting

guaranty of British quality is some
thing which cannot be got with i'm
ported sets. No one is likely to risk
the large capital involved in construct
ing broadcasting stations and in con-
Quoting daily services if German firms
are to get the benefit of selling the
receiving SETS"
Broadcasting to Begin Soon
The governments decision means,
added Godfrey Isaacs, chat stations
viii be erected shortly and broadcast
ing will begin in earnest. 1t will mean
employment for thousands of men and
women In the construction of sets. A
good deal depends on the extent to
which the British public become inter
ested IN broadcasting, but l am conf
aent that the new industry will en-
ploy many thousands of persons. once
it Is under way"
Ihough 1t seems unavoidable, unless
the development of radio in this coun-
try Is to continue indefinitely hung up,
the governments decision to give
British firms a two years MONOPOLY
IS not universally approved. Aside
from Liberals objection to it as a
departure from the free trade tradi-
ton, 1t is criticized in some radio cir
cles on other grounds.
Whlie the supposed basis of any
protective measure has been the fear
OF German competition, it Is pointed
out that the manufacturers appear to
have avoided reference to sets manu-
featured. in other countries. There
now are some thousands of American
and French sets in this country which
have been bought and sold in good
faith. Many of these sets already are
licensed under the old regulations.
1t is asked whether these sets now
are liable to be refused licenses under
the broadcasting scheme. Again, as
an example of the difference in price
which will have to be paid by the
user in the event of monopoly be-
ing established, it is pointed out that
a French radio R valve costs only 1850
francs, or just over dollar, at the
present rate of exchange, while the
corresponding article. sold by Marconi
costs six times as much.
New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1922-08-06
Eliminating AmpIifying Tube

Question: have become Interested in
Armstrong; super reg eneratlVe circuit.
and shall appreciate 1T very smuch IL
YOU viii give me a little information rela-
the last tube Is omitted entirely; that is. II
The phones are connected across condenser
60 and II, RE- C5, Is. ard all the amplify-
ing equipment to the right entirely omit
ted? Or, If this is impossible can the
phones be connected where you show the
primary OF the transformer? 2 win you
give me the data on the 10 MIL air core
choke coil, as to size of coil. number of
turns, number Of layers for bank winding
etc The DL 400 coil Is rated at II NJ II.
inductance, but l couldn't figure the size
OF condenser needed to bring the induc-
tance down to 10 NH g. Could this set
be used effectively in North Carolina with
an outside antenna without incurring
trouble other than that caused by radia-
ton &C. !. u.
Answer. The filter circuit is abso-
lutelY necessary to eliminate the effect
of the low frequency current produced
by the oscillating tube. You should be
able to get results by placing the tele-
phones where the primary of the trans
former is shown. 2. The DL 400 col
can be used for the coil markd I'D" in
the diagram, which is really high fire.
quency choke coil. The inductance of
that coil will be just about right at the
frequences involved s. could not
tell you just how we'll the set will
operate in North Carolina with an out
side antenna, but from experiments
that have already been carried out
with the set, 1t is not nearly as selec-
tive when used with an aerial as when
used with a loop aerial.
New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1922-08-06
By Ware B. Wells
rom The Trsbume's Europeam Bureau


LONDON, July 21--Confrming ear
lier rumors to this effect, Postmaster
General Kellaway now has officially an
nounced that receiving sets which it
will be permissible to use in this coun-
try under postofice license shall for
two years be restricted to apparatus
manufactured in Great Britain. This
restriction is contingent upon the
manufacturers providing an efficient
broadcasting service.
Latest meetings between the Post
master General and representatives of
the companies have resulted in good
progress toward the formulation of a
definite scheme of broadcasting. The
companies, it is contemplated, should
be divided into two groups, each of
which will broadcast services from it's
own distributing stations. Ii is re-
garded as probable that the Postmaster
General will agree to the companies
request that half the revenue fl ON an
nual licenses for receiving sets should
be placed toward the cost Of the dis
tributing services.
Companies Get Two-Year Protection
Aside from these concessions, how
ever, the radio companies which are
proposing 20 operate services in this
country insisted that they would be
unable to do so unless foreign-made
receiving sets were excluded. Their
principal revenue, they pointed out,
would consist in the sale of such in
struments, and they could not compete
at the present time with foreign
makers.
81 should like to point out" said
Godfrey Isaacs, managing director of
the Marconi Company, in an interview
when the governments acceptance of
this view was first reported, that this
is not question of ordinary tariffs.
The wireless industry is quite new
one, working under unusual conditions.
The British firms will have to spend
their capital in creating the demand
for the sets. To allow German or
other foreign firms to profit from their
propaganda would be absurd. The
New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1922-08-06
Iransocean Radio Waves
Are Nearly All in Use
Engineer Advises Sweden to
Apply for One Before 1t
Ia Too Late

STOCKHOLM, July 17.--"Apply for
your wave length now, or you will be
left out in the Cold" was the warning
advice given to Sweden by E. T. w.
Alexandersson, of New York, chief en-
gineer of the Radio Corporation of
America, who is making a brief bust
ness visit to Sweden, his native land.
The Radio Corporation has entered it's
bid for delivery of apparatus for the
new high-power wireless station which
Sweden is now building on its west
coast.
In an interview with the Stockholm
press Mr.. Alexandersson explained that
only an extremely limited number of
transatlantic radio. stations could he
operated successfully without serious
interference. He said that various
countries already had reserved most of
the wave lengths suitable for trans
Atlantic communication, and only few
were left. The wave lengths best suit
ed for such long-distance transmission
are between 10000 and 10000 meters
me wave lengths between 1880 and
1looo meters have been reserved, while
length ''oO-'ne
Ter. Alexandersson declared that IN
MS opinion, radio traffic should he
mo-opolized by the various rovern-
ments of the world. Otherwise he
SAID, the confusion in the air will ha-
come SO great that all radio service
may ultimately be rendered imposs;hIe
Inc awarding of wave lengths n
TRANSATLANTIC stations is now made by
an international commission. whose
lex Ie1e session probably will be held in
New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1922-08-06
Czechlo-Slovakia
Develops Radio
Transmission
Huge Central Station Being
Erected Near Prague to
Talk 3, 900 Miles; Aircraft
Routes Being Radioized
Latest Equipment Used
When Completed System
Will Form Last Link in
European Radio Network

The Ministry Of Post and Telegraph.
Of Czecho- Slovakia has followed all the
latest Developments in radio, sending
engineers to foreign countries to study
operating systems. When weather con-
ditions arc favorable a large station
will be built at Podebrady. Bohemia,
where the natural features are said TO
be ideal 1t is reported that central
and subsidiary wireless system will
soon be established.
The main station will be equipped
with high frequency generators Letour
Bethenod type), producing so kilowatts
in the antenne. The entire station
will be able to produce additional en-
ergy up to 100 kilowatts in the an
tennna. If the work demands il an ad
ditional 5O-kilowatt set will be in
stalled. Two towers, $50 meters in
height, will be erected It is estimated
that the range Of the station will be
about 1000 kilometers.
Podebrady station will be the main
sending station for Prague, but a small
station will also be erected there by
the state Post and Telegraph Office,
eNuIppeu Win a waive LIduoHiLkSt-
At KraI Vinohrady, a district Of
Prague, radio station with a radius
Of 400 kilometers is now being oper-
ated. At Brunn, Moravia, another sta
ton has just been completed and
tested.
For communication between Slovakia
and Prague, as we'll as the Orient,
new station is being erected at Kosice,
Slovakia, and another at Bratislave
will be operated for the benefit Of the
Danube shipping and the International
Danube committee now sitting there.
A station has been projected for Lii
brac (Reichenberg), and it is hoped
that it will be completed by August 20.
Because Of the importance of radio
communication to aerial navigation, the
Czecho-Slovakia Ministry of Post and
Telegraph and the Ministry of National
Defense are now building q station
with a range Of 1000 kilometers at
Kbely, near Prague, the starting point
of aeroplanes for Paris and Warsaw.
In western Bohemia, at Plzen or Cheb,
station for operation in connection
with the air service for Paris will also
be established, and another in north
eastern Bohemia for use in connection
with the aerial route to Warsaw. The
Ministry of National Defense is now
proposing to build system for mill
tary purposes only.
New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1922-08-06
&c" Battery Voltagcs

Cuestion--Reference is made 20 your de-
t ehs new M1ma yoa ba
kind as to furnish me with the following
Information regarding this circuit APP
should be used What resista nee head set
should be used7 What transformer Is rec
ommended2 What maximum distance
the last question, this section of the coun
try birmingham, Ala.), is one OF mag
nificent distances from a radio standpoint,
located from zoo to 800 miles apart, the
northern and eastern stations being from
S0o, to 1000 miles distance.-M. Y. H.
Answer-The &C" batteries on the
first two tubes should be from three to
four volts. This can be obtained by
with each other. The sc" battery on
the third tube should be at twenty two
and one-half volts. This can be OBJ
tanned from one of the regular "B" bat
terry units in that voltage. The regula-
ton head set can be used with 5000
ohms resistance, but / would recon-
mend that you use Baldwin receiver
because of the tremendous amount of
energy that is passed through the tele-
phone receiver. Even better results
could be obtained by using the step
down transformer and a low resistance
telephone, but think the Baldwin
WAL answer the purpose very we'll.
l could not, at this time, give you
any idea as to what distance you will
be able to obtain with this set, as it
is SO entirely new and we still have
to obtain lot of information concern
ing It from experience. You should
not, however, use 1t with an antenna
The loop aerial must be used with It.
Theoretically speaking, the distance of
fifty miles using a loud speaker is
the guaranteed distance under all cir
cumstances with the average power
output from the broadcasting station
This is all that can be guaranteed with
regenerative receiver and two stages
of audio-frequency application con-
nected to the aerial. Where you get
greater distances than that it is due
to unusual, not the minimum, normal
conditions
New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1922-08-06
Campers Hear Music Over
Vast Distance i'm Wood
With Improvieed Aerial Very
Astounding Results Are Oh
tanned at Camn


The following letter from two Trib-
une readers is of such general interest
that it is reproduced:
eve thought that you and your
readers would be interested in our ex-
periences here at Goodhue Lake, N. Y,
with radio.
eve are about eighty miles from
Rochester on camping trip. We are
Wilbur T. Knapp, an attorney of Bath,
N. Y, and Max Mcconnell, a merchant
of the same place. The lake is about
mile long and quarter of g mile
wide, entirely surrounded by heavily
wooded mountains. The forest extends
clear to the waters edge. We brought
with us type H. r. receiver and HI
two-stage amplifer. We had to erect our
aerial between two trees, and the most
we could get up was eighty-fve feet,
and this only about thirty-fye feet
from the ground and entirely surround
ed by trees, in some places; not more
than foot clearance. The wire is only
about six feet from the roof of our
camp. For ground we attached a
wire to the top of biscuit box and
dropped it from the porch into the
lake, resting on the bottom about a
foot deep.
''1n short, it seems that we have the
worst possible conditions--in sort of
trough in the earth, surrounded by
trees.
1--WE have been able to get some fine
concerts here from stations such as
Schenectady, Rochester, Newark, De-
troit and Indianapolis, but last eve
ming, at IL midnight, we received a
splendid concert from Atlanta. Ca,
broadcast by the Atlanta Journal
This, we think, very remarkable under
any conditions. 1t was clearer than
Rochester, less than one hundred miles
away, and was so loud that it could
be heard fifty feet away by laying the
aase nhnnax IN &ha lila %
New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1922-08-06
Famous Poldhu Station May
Become Radio BroadcasteY

The wireless between England and
Spain, which has been handled for some
time by land wires to the Poldhu sta
ton and thence by radio, has been
greatly improved by the substitution
of the new Marconi station at Ongar
as the transmitting agency. This sta
ton is worked by distant control from
London, so that messages filed in that
city are sent direct by radio without
any retransmission. The same station
is now working on schedule with three
other continental wireless stations.
Poldhu, located in Cornwall, ir one
of the oldest and probably the best
known of the European highpower
radio stations. At the present time it
is not being actively used and it's
eventual disposition is uncertain, al
though there has been some discussion
of plan to convert it into a radio
telephone broadcasting station.
New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1922-08-06
he Tribune Radio News of the Air Routes Birn
Daily Radio Progron
Sunday. Aurnxt G
WIZ. Newark 1860 uss..,


g. na.-~Rsdio chapel services
Sing" by Ralph Mayhew, Books TIN
p. rn.--Selections from ..rt.
Ireland's Son" by Psdrfac co,,rlh lng !.
4:9e m 1n--Rsdio for Hospftsis
s;1s p. rn.--Bdns Robinson, so,-.
gram; "Jewsl Song" ''SIignoSnasa.asse : p.
legro. :. .msp1e nto e'i6joso.s@' VI
Has Eyes" ~
WAAT, Jersey City 200 r.s,...
s:57 . ua--Turing test.
p. n1<~-RecitaI by Thomas -.
gram. @b9na," 4 4fdtas 6Bi 'sni s.. =.
Nine" Give Man a Horse eyer &
Ride. Tommy Laa." Invictrsh e sess
WIN. Ridgemood, T.. I. f3so rs....
! TO 3 p. fn.-sDecisI Sunday afternoos
1920 to u D. na.--Jossph Lish lvr,
tone. Selections. Prologue 10 .'yssssSi,.o ssf.
Fri III &aechiavi." Ny rss. l1essS'
'Toreador Song" Violin Pa.ss.ss''. :
Samuel Ross. Collections, sM sSasa... "
Souvenir" 'Berceuse." 'Orfers,si1' . DO
wBZ. Springfield. Mass. 1880 ,a......
9 p rn.--Church services conductsa
Rey. Herbert r. Thayer. y sas
KDKA, Pittsburgh 1868 nsts,,s
10 4. n1.--Servlces Of Calvary r..
Church. the Rev. f. J. Van Ette ,ssp. s.l'
Harvey 3. Gau!, ergapist and ds, IN, ,scs'F
1;45 p m--ChildTen's Bibie Stow 81
Weight Of Money Bag ia
2 p. na---Radio Chapel by the Raw ~,
erick II. Wright. '' sfsas
7 p. rn.-servtces Of Point Brs.z. D..
terrain Churrn, DR.. p II. Bsrse- s. srsass.
KYw. Chicago 1890 meters, '''''A
80 p. ro.-Radio Chapel serv,... =,
Rev. Harold Lfawood gowen " Us
New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1922-08-06
Interference on 400 Meters

Question: have Mt the present time a
receiver constructed rs follows; Vario-
with primary. 20 plato and also 3 plate
condensers across the secondary, also
home made ticker coil. This collection Of
junk connected to a home made detector
and two stage amplifer cabinet. Aerial Is
two-wre affair 80 feet long, lead-in on
wrong end for best dlreetional results.
OF trees and position of house, In fact,
cannot see where aerial is pointed correctly
for any particular station. Now. TO come
to tho point. get good results sometimes.
Generally | nm able to receive from Sche-
and clearly, and have even heard Chicago
and Indianapolis. In spite of this am
not eatlsfied. Tho trouble is this. When
listening TO some wonderful song from
Newark for example. some darned jazz
band Will render fox trdt. Both viii
then be going together. and the result is q
fine howl, which cannot eliminate.
have read every scrap of Information
can get hold of on the subject of tuning,
and as a rule cannot clear up the desired
station. Most of my trouble comes front
the smaller places, while at times Detroit
will completely cut out Newark Another
thing: OF late Schenectady has come in
sounding, as near as | can describe it, like
a man talking with an egg In his mouth
Cutting out nearly the entire tictIer coil
ana reducing the flaments to the lowest
operating points will not improve matters.
Perhaps the fault is all my own, but be-
aerial combined. In your opinion would a
two-variometer set be better. account nj
finer tuning POSSIBILITIES nave Had az
idea in my head for some time to try out
honeycomb coils. but understand they are
hard things to tune.--H. a. II
Answer think that your present
apparatus Is almost as selective as the
rio-coupler two-variometer set would
be. The trouble is, Of course, that
there are too many stations operating
on a 360-meter wave, and that is a
condition over which you have no con-
troll and which the most successful
operator will not be able to success
fully overcome. Results might be i'm
proved little by your aerial being a
1T" type instead of an 81" This
means that you would take the lead-in
from the center, instead of from one
end. would strongly urge that you
do not use honeycomb coils, as they
are not very efficient on short waves,
due to the difficulty in tuning them. |
would suggest if your set is not
already so equipped that you place a
fixed condenser Of OOPS MID capacity
across the primary of your fixed ampli-
fying transformer. The remaining
transformers, of course, will not need
any. This may help in clearing up the
situation a little. The only way in
which you can get success in tuning is
by careful manipulation of your Yer
nier control; that is, by careful tuning
with the three-plate condenser The
slightest fraction of an inch on this
condenser will make a very big differ
ence to your reception, and it Is in
this condenser that the crux of the
whole situation lies. 1t should be
tuned very slowly, and, moreover, very
carefully.
New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1922-08-06
Comparative Rates for
Transmission of Messages

The difference between the rates
charged for transmission of mes
sages by wireless and cable to Aus
tralia and India is worthy of note.
Under an agreement between the Aus
tralian Commonwealth Government
and the Amalgamated Wireless. Ltd .,
the proposed rates are two shillings e
word for full rates, shilling for de-
ferred rates, sixpence for weekend
rates, hvepence for press rates and
threepence for deferred press rates.
These costs are two-t thirds of those
for cables between Britain and Aus
tralia.-Wireles World.
New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1922-08-06
Islands of Japan To Be
Linked I'm Inv Radio

Telephone communication by radio
will be opened across the Chosen
Strait in the early part of this month,
says q report to the Department. Of
Commerce from Vice-Consul Corell,
Nagasaki. The stations at Fukuoka
equipment and it is expected that the
shipping along the coasts Of Kiushu
and Chosen will take advantage Of
this service.
This particular installation is unit
in the government plan for linking up
the yarious islands of the empire by
wireless telephone and telegraph.
New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1922-08-06
Beating the Races by Radio
And Time Difference

Long distance transmitters have to
bear in mind the difference in time in
various geographical localities. Lis
tening-in messages timed by transmit
ting stations at great distances must
be conducted according to the time
at those stations, and not at the time
at the receiving stations.
AS an illustration of this point, a
case occurred in which bookm akers in
Vienna were discovered to have been
accepting bets upon horses running in
Paris after the races had taken place.
The difference in time between Vienna
and Paris was sufficient to allow the
arrangement to work successfully
Wireless World.
New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1922-08-06
First Aid for the Radio Fan
Eliminating Interfering Stations;
How Variometer Coils Are Joined;
Notes on Singh Tube Super r.. Set

alternating at the rate of 10000 cycles
per second. This is just about audibil-
ity, although some persons with very
keen ears for high pitched tones can
actually hear it, 6. Try reversing the
connections of the two coils until the
correct results are obtained. 7. The
filter circuit acts as strainer to this
oscillating current, permitting the rec
titled uni directional current to pass
through the telephones, while at the
same time choking out the 20,00o-cycle
current
New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1922-08-06
Radio ''Flu" Hits Argentina;
Government Seeks Control

According TO Commercial Attache
Feely, no laws have yet been passed
to govern wireless telephony in Ar
gentina, but bill is being drafted
for presentation to the next Congress
to regulate the use OF radio sets.
No regulations at the present time
in effect prevent the sale of broad
casting and receiving sets. The lat
quality and sell at from 200 to 700
pesos.
New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1922-08-06
Danish Radiophone Service

Reuters Trade Service states thss
the radio telephone circuit betwsss
Copenhagen and Bornholm was =.
Gently opened TO the public. The are 81.
tenn is used for transmission and ia
rates charged are lower than for stint.
lar service by telegraph. This is Ii.
first public radio telephone circuit u
be placed in service in Scandinavia