Power - Pentode (NOT beam) vacuum tubes

Pentode

Miniature audio-output power pentode electrically equivalent to 6BQ5/EL84 except for heater rating. Designed for the output stage of audio-frequency amplifiers, it provides substantial power from compact nine-pin construction.

Base

9CV

Socket

B9A

Heater

10.5 V

Sections

1

Pentode

Miniature output pentode used in audio amplifier output stages and television video-output stages. Its power-capable construction supports both audio load drive and comparatively high-current wideband video service.

Base

Not recorded

Socket

B9A

Heater

10 V

Sections

1

Pentode-Triode

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

9DX

Socket

B9A

Heater

10.5 V

Sections

2

Pentode-Triode

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

9LY

Socket

B9A

Heater

11.6 V

Sections

2

Pentode

Output pentode designed for audio power stages in AC/DC mains-powered equipment. Its heater and output characteristics suit transformerless receivers requiring a dedicated low-frequency power amplifier.

Base

Not recorded

Socket

B9A

Heater

45 V

Sections

1

Pentode-Triode

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

Not recorded

Socket

B9A

Heater

50 V

Sections

2

BeamPower-Pentode

Beam-power receiving tube intended primarily for audio-frequency output service in television or radio equipment using series-connected heater supplies.

Base

12BT

Socket

B12C

Heater

10 V

Sections

2

Pentode-Pentode

Miniature dual-pentode television tube combining a high-current video-output section with a lower-power section for sound IF, AGC, or sync-separator service, integrating multiple television signal functions in one envelope.

Base

Not recorded

Socket

Not recorded

Heater

11.6 V

Sections

2

Pentode-Triode

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

B9A

Heater

10.9 V

Sections

2

Pentode-Triode

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

9DX

Socket

B9A

Heater

10.9 V

Sections

2

Pentode

Beam-power output tube intended for audio-frequency amplification in television and radio equipment, providing moderate output power from low-voltage receiving-tube supplies.

Base

Not recorded

Socket

B9A

Heater

12.6 V

Sections

1

Pentode-Triode

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

Not recorded

Socket

B9A

Heater

12.6 V

Sections

2

Pentode-Pentode

Twin output pentode, the 12-volt-heater designation of the 6HU8/12HU8 family. Two power-capable pentode sections are combined in one envelope for dual output-stage applications.

Base

Not recorded

Socket

Not recorded

Heater

12 V

Sections

2

Pentode

Power pentode heater variant whose source explicitly references the corresponding 6-volt parent electrical characteristics; intended for power-output service in series-heater equipment.

Base

Not recorded

Socket

B9A

Heater

14.7 V

Sections

1

Pentode

Pentode intended for amplification or power-output service. Manufacturer documentation supplies electrical ratings, characteristics, operating conditions, capacitances, and construction details supporting general power-capable amplifier operation.

Base

Not recorded

Socket

IO

Heater

6.3 V

Sections

1

Pentode

RCA heater-cathode RF power pentode designed for transmitting service. Its manufacturer ratings are intended for radio-frequency power generation or amplification rather than ordinary receiving or audio-output use.

Base

Not recorded

Socket

IO

Heater

6.3 V

Sections

1

Pentode-Pentode

Special-quality twin-pentode power amplifier related to the 12L8GT family, intended for dependable power-amplifier service.

Base

8BU

Socket

Not recorded

Heater

12.6 V

Sections

2

Pentode

High-transconductance power pentode for audio-output and television video-output stages, with approximately 13.2 W plate dissipation.

Base

9GK

Socket

B9A

Heater

16 V

Sections

1

Pentode-Pentode

Dual-pentode television sound tube combining gated-beam FM limiter/discriminator service with a separate audio power-output pentode.

Base

Not recorded

Socket

B12C

Heater

16.8 V

Sections

2

Pentode-Pentode

Dissimilar dual pentode for television receivers, combining a high-transconductance video-output section with a signal pentode for sound IF, AGC, or sync separation.

Base

Not recorded

Socket

B10B

Heater

16.5 V

Sections

2

Pentode

Indirectly heated power pentode similar to types 2A5 and 42, intended for conventional audio-frequency output service with a 14 V heater.

Base

Not recorded

Socket

UX6

Heater

14 V

Sections

1

Pentode-Pentode

Compactron combining a dual-control FM detector pentode with a separate audio power pentode for television sound output.

Base

12E2

Socket

B12C

Heater

18 V

Sections

2

Pentode-Triode

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

Base

Not recorded

Socket

B9A

Heater

18 V

Sections

2

Pentode-Triode

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

Base

9LY

Socket

B9A

Heater

18 V

Sections

2

Pentode-Triode

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

Base

Not recorded

Socket

B9A

Heater

18 V

Sections

2

Pentode

Directly heated battery power pentode for very-low-consumption receiver audio output, producing roughly 0.1 W.

Base

Not recorded

Socket

IO

Heater

1.4 V

Sections

1

Pentode

Low-drain directly heated battery power pentode providing approximately 115 mW Class-A audio output from about 90 V.

Base

6X

Socket

IO

Heater

1.4 V

Sections

1

Pentode

Ultra-low-power directly heated pentode for battery audio-output service from plate supplies as low as 45–67.5 V.

Base

8CP

Socket

IO

Heater

1.25 V

Sections

1

Pentode

Subminiature directly heated power pentode for compact battery-operated receiver output stages.

Base

512AX

Socket

B7G

Heater

1.25 V

Sections

1

Pentode

Directly heated battery power pentode for low-voltage, low-current receiver audio-output service.

Base

G-6X

Socket

IO

Heater

1.4 V

Sections

1

Pentode

Glass tubular directly heated power pentode for low-voltage battery receiver output stages.

Base

G-6X

Socket

IO

Heater

1.4 V

Sections

1

Pentode

Directly heated battery power pentode capable of roughly 0.45 W Class-A audio output from approximately 135 V.

Base

6X

Socket

IO

Heater

2 V

Sections

1

Pentode

Directly heated power-amplifier pentode for conventional battery-operated receiver output service.

Base

Not recorded

Socket

IO

Heater

2 V

Sections

1

Pentode

Low-drain directly heated battery power pentode providing roughly 115 mW Class-A audio output.

Base

5AD

Socket

B8G

Heater

1.4 V

Sections

1

Pentode

Special low-drain battery power pentode for portable receiver output stages where long battery life takes priority over high power.

Base

Not recorded

Socket

B8G

Heater

1.4 V

Sections

1

Pentode

Power/output pentode designed for Class-A, single-ended, or push-pull audio-frequency output amplification.

Base

5AD

Socket

B8G

Heater

1.4 V

Sections

1

Pentode

Power/output pentode designed for Class-A, single-ended, or push-pull audio-frequency output amplification.

Base

Not recorded

Socket

B7G

Heater

1.4 V

Sections

1

Pentode

Power/output pentode designed for Class-A, single-ended, or push-pull audio-frequency output amplification.

Base

7AV

Socket

B7G

Heater

1.4 V

Sections

1

Pentode

Power/output pentode designed for Class-A, single-ended, or push-pull audio-frequency output amplification.

Base

8CP

Socket

B8D

Heater

1.25 V

Sections

1

Pentode

Power/output pentode designed for Class-A, single-ended, or push-pull audio-frequency output amplification.

Base

Not recorded

Socket

Not recorded

Heater

2 V

Sections

1

Pentode

Power/output pentode designed for Class-A, single-ended, or push-pull audio-frequency output amplification.

Base

Not recorded

Socket

Not recorded

Heater

14 V

Sections

1

Pentode

Power/output pentode designed for Class-A, single-ended, or push-pull audio-frequency output amplification.

Base

Not recorded

Socket

B5

Heater

2 V

Sections

1

Pentode

Power/output pentode designed for Class-A, single-ended, or push-pull audio-frequency output amplification.

Base

7S

Socket

IO

Heater

25 V

Sections

1

Pentode

Power/output pentode designed for Class-A, single-ended, or push-pull audio-frequency output amplification.

Base

6B

Socket

UX6

Heater

2.5 V

Sections

1

Pentode

Power pentode designed primarily for Class-C radio-frequency transmitting, amplifier, oscillator, or modulated RF service.

Base

Not recorded

Socket

UY5

Heater

6.3 V

Sections

1

Pentode

Power pentode designed for both audio/output amplification and radio-frequency power-amplifier service.

Base

Not recorded

Socket

B7G

Heater

1.2 V

Sections

1

Pentode

Power pentode designed for both audio/output amplification and radio-frequency power-amplifier service.

Base

Not recorded

Socket

B7G

Heater

1.2 V

Sections

1

Pentode

Power pentode designed primarily for Class-C radio-frequency transmitting, amplifier, oscillator, or modulated RF service.

Base

Not recorded

Socket

UX4

Heater

2.75 V

Sections

1