Electronic tube and vacuum tube catalog

Base

E9-1

Socket code

B9A

Sections

2

Heater

6.3 V / 430 mA

Plate

S1: 250 V / 1.2 W · S2: 250 V / 1.4 W

Screen

S1: 250 V / 0.2 W

Ik max

S1: 15 mA · S2: 10 mA

rP

S1: 400,000 Ω · S2: 20,000 Ω

gm

S1: 5.5 mA/V · S2: 3.5 mA/V

μ

S2: 70

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

Combination medium-mu triode and sharp-cutoff pentode designed as a television horizontal oscillator and frequency-control tube.

Base

9C12

Socket code

B9A

Sections

2

Heater

6.3 V / 430 mA

Plate

S1: 250 V / 1.2 W · S2: 250 V / 1.4 W

Screen

S1: 250 V / 0.8 W

Ik max

S1: 15 mA · S2: 10 mA

rP

S1: 400,000 Ω · S2: 15,000 Ω

gm

S1: 5.5 mA/V · S2: 5.5 mA/V

μ

S2: 50

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

Triode-pentode developed specifically as a sinusoidal oscillator for television horizontal line scanning, providing line time-base generation and frequency control rather than output power.