Electronic tube and vacuum tube catalog

Base

7OF

Socket code

B7G

Sections

1

Heater

3.15 V / 600 mA

Plate

300 V / 1.8 W

Screen

100 V / 0.7 W

Ik max

11.5 mA

rP

5,400 Ω

7 pins - B7G - Miniature 7-contact

Gated-beam tube combining limiting, FM discrimination, and audio amplification, particularly for television intercarrier-sound and FM receiver service.

Base

NOVAL

Socket code

B9A

Sections

1

Heater

6.3 V / 300 mA

Plate

250 V / 0.1 W

Screen

100 V / 0.1 W

Ik max

5 mA

rP

5,000,000 Ω

B9A - Small-button Noval 9-contact

Seven-grid tube for combined limiting and frequency-discriminator service in FM receiving circuits, integrating nonlinear limiting and FM detection in one specialized structure.

Base

7DF

Socket code

B7G

Sections

1

Heater

6.3 V / 300 mA

Plate

300 V

Screen

100 V

Ik max

11.5 mA

7 pins - B7G - Miniature 7-contact

Gated-beam tube combining limiter, discriminator, and audio-voltage amplification for television intercarrier-sound and FM receiver circuits.