Electronic tube and vacuum tube catalog

Base

8AR

Socket code

B7G

Sections

1

Heater

1.4 V / 50 mA

Plate

90 V

Screen

90 V

Ik max

5.5 mA

rP

500,000 Ω

gm

0.9 mA/V

7 pins - B7G - Miniature 7-contact

Directly heated variable-mu pentode designed for RF and IF amplifier service in battery receivers. Its low-power filament and gain-control characteristic make it a widely applicable portable-receiver signal tube.

Base

B7G

Socket code

B7G

Sections

1

Heater

1.4 V / 50 mA

Plate

90 V / 0.5 W

Screen

67.5 V / 0.2 W

Ik max

5.5 mA

rP

800,000 Ω

gm

0.75 mA/V

7 pins - B7G - Miniature 7-contact

Equivalent designation printed with the 1T4 directly heated variable-mu RF/IF pentode. It provides controlled high-frequency gain while using a low-power filament suited to battery-operated receivers.