Svetlana SV6L6GC
High Performance Audio
Beam Power TetrodeT

he Svetlana SV6L6GC is a glass envelope beam-power tetrode intended for highpower audio amplifier service. Close manufacturing specification tolerances andimproved processing provide improved reliability and superior sonic performance. TheSvetlana SV6L6GC is manufactured in the Svetlana factory in St. Petersburg, Russia, and isdesigned to be a direct replacement for any 6L6 type.
The Svetlana SV6L6GC features:• Design and construction based on the Sylvania 6L6GC/STR387• Extra-rugged construction for use in music amplifiers--thick mica spacers and extra bracing
reduce microphonic effects and resist mechanical and thermal shocks• Increased peak cathode emission from new cathode materials• Gold-plated grid and extended processing and aging for stability and reliability• Tri-plate anode for superior dissipation• Precise grid/screen alignment• Comprehensive static and audio amplifier testing before and after aging• May be operated in inverted position--base fits into socket clamps in Fender guitar amplifiers

Svetlana SV6L6GC Outline drawing

General Characteristics
min5.738.8mmtypmax
6.3
6.9
V
0.9
A
oxide-coated, unipotential±200V

Heater Voltage (AC or DC)
Heater Current @6.3V
Cathode:Cathode-to-heater potential
Direct interelectrode capacitances :Grid no. 1 to plate
0.6
Grid no. 1 to cathode, heater, grid no. 2, and beam forming plates 10
Plate to cathode, heater, grid no. 2, and beam forming plates
6.5

pF
pF
pF

108mm

Svetlana
ELECTRON DEVICES

Mechanical
Operating position
Base
Basing diagram
Cooling
Envelope temperature (max)Nominal dimensions:
DiameterBase to top
Overall height
Diameter of base
Net weightAnyLarge wafer octal 8-pin
JEDEC 7AC
Radiation and convection
250 C
38.8mm (1.528 in.)
93mm (3.605 in.)
108mm (4.252 in.)
34mm (1.339 in.)
65 grams

Maximum ratings

34mm

Base pin connections bottom viewDC plate voltage VP
Screen grid voltage Vg2
Plate Dissipation
Screen Grid Dissipation
SMSvetlana
ELECTRON DEVICES

93mm

SV6L6GC
Made In Russia

500500305
Headquarters:
8200 South Memorial Parkway
Huntsville, AL 35802
USAPhone:
205 882 1344
Fax:
205 880 8077

VVW
W

Marketing & Engineering:3000 Alpine Road
Portola Valley, CA 94028USAPhone:
415 233 0429
Fax:
415 233 0439

G24P

H

G15NC

6372

H1NC

8C,BP9/96

www.svetlana.com

Svetlana SV6L6GC
High Performance AudioBeam Power Tetrode

Svetlana
ELECTRON DEVICES

Typical Operation, Class A, Audio Power Amplifier, Single Tube Connection
tetrode350
250-181854662.57330005200
4200
1510.8DC plate voltage
Screen grid voltage
Control grid bias voltage
Peak AF grid voltage
Zero-signal plate current
Maximum-signal plate current
Zero-signal screen grid current
Maximum-signal screen currentPlate resistance (approx)
Transconductance (approx)
Load Resistance
Total harmonic distortion
Maximum signal power output

triode250-202040
44

1700
4700
5000
51.4

VVVVmA
mA
mA
mAohmsµSohms%W

Typical Operation, Class AB1, Audio Power Amplifier (Values for two tubes)
DC plate voltage
Screen grid voltage
Control grid bias voltage
Peak AF grid-to-grid voltage
Zero-signal plate current
Maximum-signal plate current
Zero-signal screen grid current
Maximum-signal screen current
Load Resistance, plate-to-plate
Total harmonic distortion
Maximum signal power output

450400-3770
116
210
5.6
2256001.855VVVVmA
mAmA
mAohms%W+5Svetlana SV6L6GC
Typical Characteristics
Vg2=250V+20

Svetlana SV6L6GC
Typical Characteristics
screen grid connected to plate+10
Vg1 = 0 volts250-10-20200

PLATE CURRENT (Ip)250200Vg1 = 0 volts150-5-10100

PLATE CURRENT (Ip)

-15-30-2050

150-25-40-300-50

1000-6050-70-80-9000100200300
PLATE VOLTS (Vp)

400500600

100200300

PLATE VOLTS (Vp)

400

500