SED 6l6gc DATASHEETS

Svetlana SV6L6GC

38.8mm

108mm

93mm

34mm

ELECTRON DEVICES

Svetlana

SV6L6GC

Made In Russia

High Performance Audio
Beam Power Tetrode

he Svetlana SV6L6GC is a glass envelope beam-power tetrode intended for high-

T

power audio amplifier service. Close manufacturing specification tolerances and
improved processing provide improved reliability and superior sonic performance. The
Svetlana SV6L6GC is manufactured in the Svetlana factory in St. Petersburg, Russia, and is
designed 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

General Characteristics

min typ max
Heater Voltage (AC or DC) 5.7 6.3 6.9 V
Heater Current @6.3V 0.9 A
Cathode: oxide-coated, unipotential
Cathode-to-heater potential
Direct interelectrode capacitances :
Grid no. 1 to plate 0.6 pF
Grid no. 1 to cathode, heater, grid no. 2, and beam forming plates 10 pF
Plate to cathode, heater, grid no. 2, and beam forming plates 6.5 pF

Mechanical

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

Maximum ratings

DC plate voltage VP 500 V
Screen grid voltage Vg2 500 V
Plate Dissipation 30 W
Screen Grid Dissipation 5 W

±

200 V

Svetlana SV6L6GC Outline drawing

Base pin connections bottom view

G1

G2

5

4

P

3

NC

6

Svetlana

ELECTRON DEVICES

SM

Headquarters:

8200 South Memorial Parkway
Huntsville, AL 35802
USA
Phone: [phone]
Fax: [phone]

www.svetlana.com

Marketing & Engineering:

3000 Alpine Road
Portola Valley, CA 94028
USA
Phone: [phone]
Fax: [phone]

8

C,BP

7

H

9/96

2

H

1

NC

Svetlana SV6L6GC

PLATE VOLTS (Vp)

0

Svetlana SV6L6GC
Typical Characteristics
Vg2=250V

250

200

150

100

50

0

PLATE CURRENT (Ip)

+5

100 200 300 400 500

Vg1 = 0 volts

-5

-10

-30

-25

-20

-15

High Performance Audio
Beam Power Tetrode

Typical Operation, Class A, Audio Power Amplifier, Single Tube Connection

tetrode triode
DC plate voltage 350 250 V
Screen grid voltage 250 V
Control grid bias voltage -18 -20 V
Peak AF grid voltage 18 20 V
Zero-signal plate current 54 40 mA
Maximum-signal plate current 66 44 mA
Zero-signal screen grid current 2.5 mA
Maximum-signal screen current 7 mA
Plate resistance (approx) 33000 1700 ohms
Transconductance (approx) 5200 4700
Load Resistance 4200 5000 ohms
Total harmonic distortion 15 5 %
Maximum signal power output 10.8 1.4 W

Typical Operation, Class AB1, Audio Power Amplifier (Values for two tubes)

DC plate voltage 450 V
Screen grid voltage 400 V
Control grid bias voltage -37 V
Peak AF grid-to-grid voltage 70 V
Zero-signal plate current 116 mA
Maximum-signal plate current 210 mA
Zero-signal screen grid current 5.6 mA
Maximum-signal screen current 22 mA
Load Resistance, plate-to-plate 5600 ohms
Total harmonic distortion 1.8 %
Maximum signal power output 55 W

µ

S

Svetlana

ELECTRON DEVICES

Svetlana SV6L6GC

+20

250

200

150

100

PLATE CURRENT (Ip)

50

0

100

+10

200 300 400 500 6000

Vg1 = 0 volts

PLATE VOLTS (Vp)

Typical Characteristics

screen grid connected to plate

-10

-20

-30

-40

-50

-60

-70

-80

-90