Electronic tube and vacuum tube catalog

Base

9DX

Socket code

B9A

Electrical Summary

Heater	10.5 V / 450 mA
Plate	S1: 330 V / 5 WS2: 330 V / 1 W
Screen	S1: 330 V / 1.1 W
rP	S1: 60,000 ΩS2: 37,000 Ω
gm	S1: 11.5 mA/VS2: 2.7 mA/V
μ	S1: 100S2: 100

Sections

2

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

Miniature triode-pentode for television receivers. The triode serves sync-separator, sync-clipper, phase-inverter, or sound-IF functions, while the pentode provides video-output amplification.

Base

9LY

Socket code

B9A

Electrical Summary

Heater	11.6 V / 450 mA
Plate	S1: 250 V / 0.5 WS2: 250 V / 7 W
Screen	S2: 250 V / 2 W
Ik max	S1: 200 mAS2: 75 mA
rP	S1: 7,600 ΩS2: 25,000 Ω
gm	S1: 6.5 mA/VS2: 7.5 mA/V
μ	S1: 50S2: 50

Sections

2

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

Miniature triode-pentode for television sync-amplifier and video-output applications. It is electrically equivalent to related ECL85-family types except for heater rating, combining small-signal control and output functions.

Base

—

Socket code

B9A

Electrical Summary

Heater	50 V / 100 mA
Plate	S1: 250 V / 7 WS2: 250 V / 1 W
Screen	S1: 250 V / 1.8 W
Ik max	S1: 50 mAS2: 15 mA
gm	S1: 6.4 mA/VS2: 2.5 mA/V
μ	S1: 9.5S2: 70

Sections

2

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

Beam-power output valve intended for audio-frequency power amplification in television and radio receivers, using a heater suited to series-connected receiver supplies.

Base

9DX

Socket code

B9A

Electrical Summary

Heater	10.9 V / 450 mA
Plate	S1: 300 V / 2 WS2: 300 V / 5 W
Screen	S2: 300 V / 1 W
rP	S1: 20,000 ΩS2: 75,000 Ω
gm	S1: 4 mA/VS2: 23 mA/V
μ	S1: 100

Sections

2

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

Miniature triode-pentode for television voltage amplification, sync separation, sound IF, and video output. Its pentode section uses frame-grid construction for high-transconductance wideband output service.

Base

9DX

Socket code

B9A

Electrical Summary

Heater	10.9 V / 450 mA
Plate	S1: 300 V / 2 WS2: 300 V / 5 W
Screen	S2: 300 V / 1 W
rP	S1: 4,400 ΩS2: 75,000 Ω
gm	S1: 10.4 mA/VS2: 23 mA/V
μ	S1: 35

Sections

2

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

Miniature triode-pentode for television receivers. The triode serves sync-separator or sound-IF functions while the pentode provides video-output amplification, combining control and output stages in one tube.

Base

—

Socket code

B9A

Electrical Summary

Heater	12.6 V / 225 mA
Plate	S1: 150 V / 0.75 WS2: 150 V / 6.5 W
Screen	S2: 135 V / 1.5 W
Ik max	S1: 5 mAS2: 60 mA
rP	S1: 5,500 ΩS2: 250,000 Ω
gm	S1: 7.5 mA/VS2: 6 mA/V
μ	S1: 40

Sections

2

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

Triode-pentode electrically equivalent to related 6DZ8-family versions except for heater rating. Manufacturer documentation defines a combined small-signal triode and pentode device rather than a single-section power pentode.

Base

—

Socket code

B9A

Electrical Summary

Heater	18 V / 300 mA
Plate	S1: 150 V / 0.75 WS2: 150 V / 6.5 W
Screen	S2: 150 V / 1.5 W
Ik max	S2: 60 mA
gm	S1: 1.4 mA/VS2: 7.5 mA/V
μ	S1: 10

Sections

2

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

Miniature high-mu triode and power-pentode combination designed as a complete two-stage audio-frequency amplifier.

Base

9LY

Socket code

B9A

Electrical Summary

Heater	18 V / 300 mA
Plate	S1: 250 V / 0.5 WS2: 250 V / 7 W
Screen	S2: 250 V / 2 W
Ik max	S2: 75 mA
rP	S1: 7,600 ΩS2: 25,000 Ω
gm	S1: 6.5 mA/VS2: 7.5 mA/V
μ	S1: 50

Sections

2

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

High-mu triode and power-pentode combination for television sync amplification and video-output service.

Base

—

Socket code

B9A

Electrical Summary

Heater	18 V / 300 mA
Plate	S1: 150 V / 0.75 WS2: 150 V / 6.5 W
Screen	S2: 135 V / 1.4 W
Ik max	S1: 5 mAS2: 51 mA
gm	S1: 3.9 mA/VS2: 6.25 mA/V
μ	S1: 74

Sections

2

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

Triode-pentode designed for stereo and monaural audio equipment, integrating voltage amplification with approximately 1 W Class-A output.

Base

E9-1

Socket code

B9A

Electrical Summary

Heater	32 V / 150 mA
Plate	S1: 250 V / 1 WS2: 250 V / 7 W
Screen	S2: 250 V / 1.8 W
Ik max	S1: 15 mAS2: 50 mA
rP	S2: 15,000 Ω
gm	S1: 2.5 mA/VS2: 6.8 mA/V
μ	S1: 70

Sections

2

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

Combination triode-pentode with a triode for audio-frequency amplification and a power pentode for output service.

Base

E9-1

Socket code

B9A

Electrical Summary

Heater	50 V / 100 mA
Plate	S1: 250 V / 1 WS2: 250 V / 7 W
Screen	S2: 250 V / 1.8 W
Ik max	S1: 15 mAS2: 50 mA
rP	S2: 15,000 Ω
gm	S1: 2.5 mA/VS2: 6.8 mA/V
μ	S1: 70S2: 9.5

Sections

2

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

Triode/power-pentode combination for compact audio and receiver circuits, with a 7 W pentode output section.

Base

—

Socket code

B9A

Electrical Summary

Heater	6.3 V / 850 mA
Plate	S1: 300 V / 1.5 WS2: 300 V / 7 W
Screen	S2: 300 V / 1.8 W
gm	S1: 2.2 mA/VS2: 7.5 mA/V
μ	S1: 70

Sections

2

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

Modern triode/power-pentode combination for low-frequency voltage amplification and audio power output.

Base

9DX

Socket code

B9A

Electrical Summary

Heater	6.3 V / 750 mA
Plate	S1: 330 V / 5 WS2: 330 V / 2 W
Screen	S1: 330 V / 1.1 W
rP	S1: 70,000 ΩS2: 8,700 Ω
gm	S1: 10 mA/VS2: 4.6 mA/V
μ	S1: 40S2: 40

Sections

2

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

Triode/pentode combination for television video, sound-IF, sweep-oscillator, and synchronization signal-processing circuits.

Base

9DX

Socket code

B9A

Electrical Summary

Heater	6.3 V / 750 mA
Plate	S1: 330 V / 5 WS2: 330 V / 1 W
Screen	S1: 330 V / 1.1 W
Ik max	S1: 40 mAS2: 12 mA
rP	S1: 75,000 ΩS2: 37,000 Ω
gm	S1: 12.5 mA/VS2: 2.7 mA/V
μ	S2: 100

Sections

2

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

Miniature high-mu triode plus sharp-cutoff pentode for television receivers. The pentode provides video-output amplification while the triode serves sync-separator, sync-clipper, or phase-inverter functions.

Base

9LZ

Socket code

B9A

Electrical Summary

Heater	6.3 V / 660 mA
Plate	S1: 330 V / 0.5 WS2: 330 V / 9 W
Screen	S2: 330 V / 1.8 W
Ik max	S1: 4 mAS2: 55 mA
rP	S1: 45,000 ΩS2: 48,000 Ω
gm	S1: 1.6 mA/VS2: 10 mA/V
μ	S1: 100

Sections

2

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

High-mu triode plus sharp-cutoff power pentode used in audio preamplifier and output stages of audio equipment and television receivers, integrating voltage gain and power output in one envelope.

Base

—

Socket code

B9A

Electrical Summary

Heater	6.3 V / 1.125 A
Plate	S1: 330 V / 8 WS2: 300 V / 1 W
Screen	S1: 2 W
rP	S1: 140,000 Ω
gm	S1: 12.6 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; the triode serves voltage-amplifier or sync-separator functions while the pentode provides television video amplification.

Base

—

Socket code

B9A

Electrical Summary

Heater	6.3 V / 780 mA
Plate	S1: 300 VS2: 330 V / 5 W
Screen	S2: 330 V / 2 W
rP	S2: 140,000 Ω
gm	S1: 4.2 mA/VS2: 12 mA/V
μ	S1: 70

Sections

2

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

Dissimilar high-mu triode and sharp-cutoff pentode designed for color-television sync-separator, voltage-amplifier, and video-amplifier service, integrating control and wideband amplification in one tube.

Base

E9-1

Socket code

B9A

Electrical Summary

Heater	6.3 V / 430 mA
Plate	S1: 250 V / 1.2 WS2: 250 V / 1.4 W
Screen	S1: 250 V / 0.2 W
Ik max	S1: 15 mAS2: 10 mA
rP	S1: 400,000 ΩS2: 20,000 Ω
gm	S1: 5.5 mA/VS2: 3.5 mA/V
μ	S2: 70

Sections

2

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

9DX

Socket code

B9A

Electrical Summary

Heater	6.3 V / 775 mA
Plate	S1: 300 V / 1 WS2: 300 V / 5 W
Screen	S2: 300 V / 1 W
rP	S1: 17,500 ΩS2: 75,000 Ω
gm	S1: 4 mA/VS2: 23 mA/V
μ	S1: 70

Sections

2

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

High-mu triode plus frame-grid sharp-cutoff pentode for television receivers. The triode handles voltage, sync, or sound-IF functions while the pentode provides high-transconductance video output.

Base

9DX

Socket code

B9A

Electrical Summary

Heater	6.3 V / 775 mA
Plate	S1: 300 V / 2 WS2: 300 V / 5 W
Screen	S2: 300 V / 1 W
rP	S1: 4,400 ΩS2: 55,000 Ω
gm	S1: 10.4 mA/VS2: 23 mA/V
μ	S1: 46

Sections

2

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

Medium-mu triode plus sharp-cutoff pentode for television receivers. The pentode provides video output while the triode serves sync-separator and sound-IF functions.

Base

EIA 12FM

Socket code

B12C

Electrical Summary

Heater	6.3 V / 930 mA
Plate	S1: 275 V / 12 WS2: 300 V / 1.5 W
Screen	S1: 275 V / 2 W
rP	S1: 100,000 ΩS2: 45,000 Ω
gm	S1: 6.5 mA/VS2: 2.1 mA/V
μ	S2: 95

Sections

2

12 pins - B12C - Duodecar 12-contact

Combination high-mu triode and power pentode for audio-frequency circuits, with the pentode serving as the output power amplifier.

Base

9DX

Socket code

B9A

Electrical Summary

Heater	8 V / 600 mA
Plate	S1: 330 V / 5 WS2: 330 V / 2 W
Screen	S1: 330 V / 1.1 W
rP	S1: 70,000 ΩS2: 8,700 Ω
gm	S1: 10 mA/VS2: 4.6 mA/V
μ	S2: 40

Sections

2

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

Triode/pentode combination for television video, sound-IF, sweep-oscillator, and synchronization circuitry.

Base

NOVAL

Socket code

B9A

Electrical Summary

Heater	8 V / 450 mA
Plate	S1: 330 V / 1 WS2: 330 V / 5 W
Screen	S2: 330 V / 1.1 W
rP	S1: 37,000 ΩS2: 60,000 Ω
gm	S1: 2.7 mA/VS2: 11.5 mA/V
μ	S1: 100

Sections

2

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

Triode/pentode television signal-processing tube for sync, sound-IF, phase-inverter, and video-amplifier service.

Base

NOVAL

Socket code

B9A

Electrical Summary

Heater	8 V / 450 mA
Plate	S1: 330 V / 1 WS2: 330 V / 5 W
Screen	S2: 330 V / 1.1 W
rP	S1: 37,000 ΩS2: 60,000 Ω
gm	S1: 2.7 mA/VS2: 11.5 mA/V
μ	S1: 100

Sections

2

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

Triode/pentode combination for television video, sound-IF, synchronization, and phase-inverter circuits.

Base

—

Socket code

B9A

Electrical Summary

Heater	8.2 V / 600 mA
Plate	S1: 300 VS2: 330 V / 5 W
Screen	S2: 330 V / 2 W
rP	S2: 140,000 Ω
gm	S1: 4.2 mA/VS2: 12 mA/V
μ	S1: 70

Sections

2

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

Dissimilar triode/pentode for color-television sync separation, voltage amplification, and video amplification.

Base

—

Socket code

B9A

Electrical Summary

Heater	8 V / 600 mA
Plate	S1: 330 V / 2 WS2: 330 V / 5 W
Screen	S2: 330 V / 1.1 W
rP	S1: 4,400 ΩS2: 60,000 Ω
gm	S1: 10.4 mA/VS2: 20 mA/V
μ	S1: 46

Sections

2

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

Triode/pentode television signal processor with a 20 mS video pentode and triode for sync or sound-IF service.

Base

—

Socket code

—

Electrical Summary

Heater	6.3 V / 1 A
Plate	S1: 300 V / 0.6 WS2: 250 V / 9 W
Screen	S2: 275 V / 1.3 W
Ik max	S1: 15 mAS2: 60 mA
rP	S2: 25,000 Ω
gm	S1: 2 mA/VS2: 9 mA/V
μ	S1: 66

Sections

2

Combination valve incorporating a power-output pentode with diode or triode sections for audio-frequency amplification, detection, or driver service.

Base

—

Socket code

B9A

Electrical Summary

Heater	6.3 V / 770 mA
Plate	S1: 300 V / 1.5 WS2: 250 V / 8 W
Screen	S2: 250 V / 2.5 W
Ik max	S1: 20 mAS2: 80 mA
rP	S1: 18,000 ΩS2: 18,000 Ω
gm	S1: 5.5 mA/VS2: 11 mA/V
μ	S1: 55

Sections

2

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

Triode-pentode designed for television sync separation, amplification, and power-output service.

Base

—

Socket code

B9A

Electrical Summary

Heater	6.3 V / 600 mA
Plate	S1: 250 V / 1.5 WS2: 250 V / 7 W
Screen	S2: 250 V / 1.5 W
Ik max	S1: 15 mAS2: 60 mA
rP	S2: 22,000 Ω
gm	S1: 1.6 mA/VS2: 8.75 mA/V
μ	S1: 56

Sections

2

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

Combination valve incorporating a power-output pentode with diode or triode sections for audio-frequency amplification, detection, or driver service.

Base

9C12

Socket code

B9A

Electrical Summary

Heater	6.3 V / 780 mA
Plate	S1: 300 V / 1 WS2: 600 V / 7 W
Screen	S2: 300 V / 3.2 W
Ik max	S1: 15 mAS2: 50 mA
rP	S1: 28,000 ΩS2: 25,000 Ω
gm	S1: 2.5 mA/VS2: 6.4 mA/V
μ	S1: 70S2: 9.5

Sections

2

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

Combination valve incorporating a power-output pentode with diode or triode sections for audio-frequency amplification, detection, or driver service.

Base

—

Socket code

B9A

Electrical Summary

Heater	6.3 V / 700 mA
Plate	S1: 250 V / 3.5 WS2: 250 V / 5.4 W
Screen	S2: 250 V / 1.5 W
Ik max	S1: 15 mAS2: 45 mA
rP	S1: 34,000 ΩS2: 65,000 Ω
gm	S1: 2.5 mA/VS2: 5 mA/V
μ	S1: 85

Sections

2

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

Combination valve incorporating a power-output pentode with diode or triode sections for audio-frequency amplification, detection, or driver service.

Base

9LZ

Socket code

B9A

Electrical Summary

Heater	6.3 V / 660 mA
Plate	S1: 300 V / 0.5 WS2: 300 V / 9 W
Screen	S2: 300 V / 1.8 W
Ik max	S1: 4 mAS2: 55 mA
rP	S1: 50,000 ΩS2: 48,000 Ω
gm	S1: 1.6 mA/VS2: 10 mA/V
μ	S1: 100S2: 21

Sections

2

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

Combination valve incorporating a power-output pentode with diode or triode sections for audio-frequency amplification, detection, or driver service.

Base

9LY

Socket code

B9A

Electrical Summary

Heater	18 V / 300 mA
Plate	S1: 250 V / 0.5 WS2: 250 V / 7 W
Screen	S2: 250 V / 2 W
Ik max	S2: 75 mA
rP	S1: 7,600 ΩS2: 25,000 Ω
gm	S1: 6.5 mA/VS2: 7.5 mA/V
μ	S1: 50

Sections

2

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

Triode/power-pentode combination for television sync amplification and video-output service.

Base

B9A

Socket code

B9A

Electrical Summary

Heater	12.6 V / 300 mA
Plate	S1: 250 V / 5.4 WS2: 250 V / 3.5 W
Screen	S1: 250 V / 1.2 W
rP	S1: 45,000 ΩS2: 7,700 Ω
gm	S1: 4.7 mA/VS2: 2.2 mA/V
μ	S2: 17

Sections

2

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

Triode/power-pentode combination for compact audio amplifiers, integrating voltage gain and loudspeaker output.

Base

—

Socket code

B10B

Electrical Summary

Heater	15.5 V / 300 mA
Plate	S1: 300 V / 1.5 WS2: 250 V / 8 W
Screen	S2: 250 V / 2.5 W
Ik max	S1: 20 mAS2: 80 mA
rP	S1: 18,000 ΩS2: 22,000 Ω
gm	S1: 5.2 mA/VS2: 11 mA/V
μ	S1: 55

Sections

2

10 pins - B10B - Decal 10-contact

Triode-pentode designed for television video-frequency amplification and power-output service. It combines a small-signal triode with a power-capable pentode in one envelope.

Base

—

Socket code

B9A

Electrical Summary

Heater	17 V / 300 mA
Plate	S1: 250 V / 1.5 WS2: 250 V / 7 W
Screen	S2: 250 V / 1.5 W
Ik max	S1: 15 mAS2: 60 mA
rP	S2: 22,000 Ω
gm	S1: 1.6 mA/VS2: 8.75 mA/V
μ	S1: 56

Sections

2

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

300 mA series-heater triode-pentode combination tube for television receivers. It integrates small-signal triode and power-pentode functions for transformerless television circuitry.

Base

9EX

Socket code

B9A

Electrical Summary

Heater	50 V / 100 mA
Plate	S1: 300 V / 1 WS2: 600 V / 7 W
Screen	S2: 300 V / 2 W
Ik max	S1: 15 mAS2: 50 mA
rP	S1: 28,000 ΩS2: 16,000 Ω
gm	S1: 2.2 mA/VS2: 7.5 mA/V
μ	S1: 70S2: 9.5

Sections

2

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

Series-heater triode/pentode combination for audio voltage amplification and approximately 5 W power output.

Base

B9A

Socket code

B9A

Electrical Summary

Heater	38 V / 100 mA
Plate	S1: 250 V / 5.4 WS2: 250 V / 3.5 W
Screen	S1: 250 V / 1.2 W
Ik max	S1: 45 mA
rP	S1: 53,000 ΩS2: 34,000 Ω
gm	S1: 5.5 mA/VS2: 2.5 mA/V
μ	S1: 10S2: 85

Sections

2

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

100 mA series-heater triode/pentode combining audio voltage amplification with power-output service.