Electronic tube and vacuum tube catalog

Base

9BF

Socket code

B9A

Sections

1

Heater

12.6 V / 300 mA

Plate

300 V / 6.25 W

Screen

175 V / 1 W

rP

85,000 Ω

gm

13 mA/V

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

Sharp-cutoff pentode designed as a television video amplifier. Part of the 12BY7A/12BV7/12DQ7 replacement family, it is fundamentally a high-transconductance wideband signal tube rather than an audio power-output pentode.

Base

9BF

Socket code

B9A

Sections

1

Heater

12.6 V / 300 mA

Plate

300 V / 6.5 W

Screen

180 V / 1.1 W

rP

93,000 Ω

gm

11 mA/V

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

Sharp-cutoff pentode designed for television video amplification. It belongs to the 12BY7A/12BV7/12DQ7 replacement family and provides high-transconductance wideband signal gain rather than ordinary audio power output.