Electronic tube and vacuum tube catalog

Base

7DF

Socket code

B7G

Electrical Summary

Heater	12.6 V / 300 mA
Plate	300 V / 2 W
Screen	150 V
Ik max	11.5 mA
rP	500,000 Ω
gm	2.2 mA/V

Sections

1

7 pins - B7G - Miniature 7-contact

Gated-beam hexode designed as a combined limiter, discriminator, and audio-voltage amplifier in intercarrier television and FM receivers.

Base

—

Socket code

ACORN5

Electrical Summary

-

Sections

1

5 pins - ACORN5 - Acorn 5-pin

Acorn orbital-beam hexode designed for UHF detector or RF-amplifier service, particularly experimental and radar receiving applications.

Base

7GA

Socket code

B7G

Electrical Summary

Heater	2.4 V / 600 mA
Plate	300 V / 3.25 W
Screen	150 V / 0.16 W
Ik max	20 mA
rP	240,000 Ω
gm	10 mA/V

Sections

1

7 pins - B7G - Miniature 7-contact

Beam hexode designed as an RF amplifier in VHF television receivers.

Base

—

Socket code

B7G

Electrical Summary

Heater	2.4 V / 600 mA
Plate	300 V / 3 W
Screen	150 V
Ik max	20 mA
rP	165,000 Ω
gm	15.5 mA/V

Sections

1

7 pins - B7G - Miniature 7-contact

Beam hexode designed for VHF radio-frequency amplifier service, a two-volt-heater version of the 6GU5.

Base

7GA

Socket code

B7G

Electrical Summary

Heater	2.9 V / 450 mA
Plate	300 V / 3.25 W
Screen	150 V / 0.16 W
Ik max	20 mA
rP	240,000 Ω
gm	10 mA/V

Sections

1

7 pins - B7G - Miniature 7-contact

Beam hexode designed as an RF amplifier in VHF television receivers, differing from the 6FS5 primarily in heater characteristics.

Base

—

Socket code

B12C

Electrical Summary

Heater	6.3 V / 220 mA
Plate	300 V / 3 W
Screen	150 V / 0.15 W
Ik max	20 mA
rP	165,000 Ω
gm	15.5 mA/V

Sections

1

12 pins - B12C - Duodecar 12-contact

Beam hexode designed specifically for VHF radio-frequency amplifier service.

Base

—

Socket code

B9A

Electrical Summary

Heater	6.3 V / 700 mA

Sections

1

9 pins - B9A - Small-button Noval 9-contact

Secondary-emission hexode designed for fast pulse generators and pulse amplifiers, using current multiplication to produce rapid high-amplitude wavefronts.

Base

P35

Socket code

P8A

Electrical Summary

Heater	4 V / 650 mA
Plate	250 V / 1.5 W
Screen	125 V / 0.5 W
Ik max	10 mA
rP	2,000,000 Ω
gm	0.55 mA/V

Sections

1

8 pins - P8A - European 8-pin side-contact base

Variable-control hexode designed for RF and IF amplifier service in fading-compensated radio receiver stages.

Base

—

Socket code

—

Electrical Summary

Heater	4 V / 1.1 A
Plate	250 V / 2 W
Screen	150 V / 1 W
Ik max	15 mA
rP	250,000 Ω
gm	1.5 mA/V

Sections

1

German triode valve with published operating data and limiting ratings; available source material does not establish a narrower functional role confidently.

Base

—

Socket code

—

Electrical Summary

Heater	20 V / 180 mA
Plate	200 V
gm	2 mA/V

Sections

1

Variable-mu hexode documented for receiving-equipment service; available source does not establish a more specific functional application.

Base

—

Socket code

B5

Electrical Summary

Heater	4 V / 1.2 A
Plate	200 V
Screen	80 V
rP	450,000 Ω
gm	2 mA/V

Sections

1

B5 - European 5-pin base

Variable-mu hexode documented with receiving-tube operating characteristics; available source does not establish a narrower functional application.

Base

—

Socket code

—

Electrical Summary

Heater	6.3 V / 200 mA
Plate	550 V / 1.56 W
rP	1,000,000 Ω
gm	1.4 mA/V

Sections

1

Variable-mu heptode documented in the source table; despite its current hexode section assignment, available application detail is insufficient for a narrower functional classification.

Base

—

Socket code

—

Electrical Summary

Heater	4 V / 180 mA
Plate	200 V
Screen	100 V

Sections

1

Variable-control fading-compensation hexode designed for RF and IF amplifier service in radio receivers.