Electronic tube and vacuum tube catalog

Base

9DX

Socket code

B9A

Electrical Summary

Heater	6.3 V / 600 mA
Plate	S1: 330 V / 3.75 WS2: 330 V / 1.1 W
Screen	S1: 330 V / 1.1 W
rP	S1: 400,000 ΩS2: 17,500 Ω
gm	S1: 9 mA/VS2: 4 mA/V
μ	S2: 70

Sections

2

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

High-mu triode plus sharp-cutoff pentode for television IF, video, AGC/reactance, oscillator, sync, and phase-splitter circuits.

Base

9AE

Socket code

B9A

Electrical Summary

Heater	6.3 V / 450 mA
Plate	S1: 300 V / 2.7 WS2: 300 V / 2.8 W
Screen	S2: 300 V / 0.5 W
rP	S1: 5,000 ΩS2: 400,000 Ω
gm	S1: 8.5 mA/VS2: 4.8 mA/V
μ	S1: 40

Sections

2

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

Triode-pentode designed for television video-amplifier and sync-separator service, combining video gain and synchronization functions in one envelope.

Base

—

Socket code

B9A

Electrical Summary

Heater	6.3 V / 600 mA
Plate	S1: 300 V / 2 WS2: 300 V / 3.25 W
Screen	S2: 300 V / 1 W
rP	S1: 6,000 ΩS2: 250,000 Ω
gm	S1: 6.5 mA/VS2: 9 mA/V
μ	S1: 40

Sections

2

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

Medium-mu triode plus sharp-cutoff pentode designed for 600 mA series-string television receiver circuits.

Base

9DX

Socket code

B9A

Electrical Summary

Heater	6.3 V / 600 mA
Plate	S1: 300 V / 2 WS2: 300 V / 3.25 W
Screen	S2: 300 V / 1 W
rP	S1: 6,700 ΩS2: 400,000 Ω
gm	S1: 2.7 mA/VS2: 9 mA/V
μ	S1: 18

Sections

2

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

Medium-mu triode plus sharp-cutoff pentode for television video, AGC, reactance, oscillator, and phase-splitter service.

Base

9FT

Socket code

B9A

Electrical Summary

Heater	6.3 V / 450 mA
Plate	S1: 300 V / 2.6 WS2: 300 V / 2 W
Screen	S2: 300 V / 0.5 W
rP	S1: 5,750 ΩS2: 300,000 Ω
gm	S1: 3.3 mA/VS2: 6.2 mA/V
μ	S1: 19

Sections

2

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

General-purpose medium-mu triode plus sharp-cutoff pentode for television IF, video, AGC, oscillator, and phase-splitter circuits.

Base

9FZ

Socket code

B9A

Electrical Summary

Heater	6.3 V / 450 mA
Plate	S1: 300 V / 1 WS2: 300 V / 2 W
Screen	S2: 300 V / 0.5 W
rP	S1: 50,000 ΩS2: 600,000 Ω
gm	S1: 2 mA/VS2: 6.2 mA/V
μ	S1: 100

Sections

2

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

High-mu triode plus sharp-cutoff pentode; the pentode is designed for television IF, AGC, and reactance-tube service.

Base

9FZ

Socket code

B9A

Electrical Summary

Heater	6.3 V / 450 mA
Plate	S1: 330 V / 2.75 WS2: 330 V / 2.3 W
Screen	S2: 330 V / 0.55 W
rP	S1: 5,500 ΩS2: 300,000 Ω
gm	S1: 4 mA/VS2: 7.7 mA/V
μ	S1: 22

Sections

2

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

Sharp-cutoff pentode for television intermediate-frequency service combined with a general-purpose triode and controlled heater warm-up.

Base

9DX

Socket code

B9A

Electrical Summary

Heater	6.3 V / 450 mA
Plate	S1: 330 V / 2.8 WS2: 330 V / 2.3 W
Screen	S2: 330 V / 0.55 W
rP	S1: 4,100 ΩS2: 170,000 Ω
gm	S1: 5.8 mA/VS2: 7.8 mA/V
μ	S1: 28

Sections

2

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

Medium-mu triode plus sharp-cutoff pentode for a wide range of black-and-white and color television circuits, with controlled heater warm-up.

Base

9HX

Socket code

B9A

Electrical Summary

Heater	6.3 V / 720 mA
Plate	S1: 300 V / 1 WS2: 300 V / 4 W
Screen	S2: 300 V / 1.7 W
Ik max	S1: 12 mAS2: 40 mA
rP	S1: 16,250 ΩS2: 130,000 Ω
gm	S1: 4 mA/VS2: 10.4 mA/V
μ	S1: 65S2: 65

Sections

2

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

High-mu triode plus sharp-cutoff pentode designed for television sync/noise circuitry and video-output service.