Electronic tube and vacuum tube catalog

Base

7CH

Socket code

B7G

Electrical Summary

Heater	12.6 V / 150 mA
Plate	30 V
Screen	30 V
Ik max	20 mA
rP	1,000,000 Ω
μ	9.4

Sections

1

7 pins - B7G - Miniature 7-contact

Miniature heptode frequency changer developed specifically for automobile radios operating directly from a 12 V battery. It performs oscillator and mixer functions effectively without a conventional high-voltage B-plus supply.

Base

7CH

Socket code

B7G

Electrical Summary

Heater	12.6 V / 150 mA
Plate	16 V
Screen	16 V
rP	1,000,000 Ω
gm	0.14 mA/V
μ	2

Sections

1

7 pins - B7G - Miniature 7-contact

Low-voltage heptode oscillator-converter for 12 V automobile radios. It combines mixer and local-oscillator functions while operating directly from the vehicle supply without conventional high-voltage B-plus.