Power - Pentode (NOT beam) vacuum tubes

Pentode

Directly heated subminiature power pentode designed for portable, wearable, or low-battery-drain output-amplifier service.

Base

Not recorded

Socket

Not recorded

Heater

1.25 V

Sections

1

Pentode

Directly heated subminiature power pentode designed for portable, wearable, or low-battery-drain output-amplifier service.

Base

Not recorded

Socket

B5D

Heater

1.25 V

Sections

1

Pentode

6549 power - pentode (not beam) electronic tube specifications and datasheets.

Base

Not recorded

Socket

Not recorded

Heater

6 V

Sections

1

Pentode

Power/output pentode designed for audio, broadband, telephone, industrial, or general power-amplifier service.

Base

7CH

Socket

B7G

Heater

18 V

Sections

1

Pentode

Power/output pentode designed for audio, broadband, telephone, industrial, or general power-amplifier service.

Base

9A

Socket

B9A

Heater

6.3 V

Sections

1

Pentode

High-slope pentode for RF, video, wideband amplification, and small-transmitter service, bridging broadband voltage gain with modest RF power capability.

Base

Not recorded

Socket

B9A

Heater

6.3 V

Sections

1

Pentode-Rectifier

Industrial twin power pentode for push-pull RF amplification or frequency multiplication at frequencies extending to approximately 500 MHz.

Base

9HL

Socket

B9A

Heater

12.6 V

Sections

2

Pentode

Modern 6973-family audio power pentode with 13 W plate dissipation and high-voltage capability for compact high-output amplifiers.

Base

Not recorded

Socket

B9A

Heater

6.3 V

Sections

1

Pentode

Directly heated audio power pentode for automobile and receiver output stages, usable singly or in push-pull.

Base

5B

Socket

UY5

Heater

6.3 V

Sections

1

Pentode

Directly heated power pentode for Class A and push-pull Class AB audio-output service.

Base

5

Socket

UX5

Heater

6.3 V

Sections

1

Pentode-Pentode

Dual-pentode television tube combining a sharp-cutoff FM detector section with a separate audio power-output pentode.

Base

E12-70

Socket

B12C

Heater

6.3 V

Sections

2

Pentode

High-sensitivity audio power pentode capable of approximately 3.75 W single-ended output at 250 V.

Base

7S

Socket

B7G

Heater

6.3 V

Sections

1

Pentode

Industrial 6AG7-family high-transconductance pentode for professional communications and wideband amplifier service.

Base

Not recorded

Socket

IO

Heater

6.3 V

Sections

1

Pentode

High-transconductance power pentode capable of approximately 3 W Class A audio output.

Base

8Y

Socket

IO

Heater

6.3 V

Sections

1

Pentode

Long-life, low-failure-rate power pentode for dependable medium-power audio-output applications.

Base

E7-1

Socket

B7G

Heater

6.3 V

Sections

1

Pentode

High-transconductance audio power pentode capable of approximately 4 W single-ended Class A output.

Base

6CH

Socket

B7G

Heater

6.3 V

Sections

1

Pentode-Triode

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

Base

Not recorded

Socket

B9A

Heater

6.3 V

Sections

2

Pentode

EL84/6BQ5 high-transconductance audio power pentode for compact high-fidelity single-ended and push-pull output stages.

Base

B9A

Socket

B9A

Heater

6.3 V

Sections

1

Diode-Diode-Pentode

Duo-diode power-pentode combination integrating detector functions with loudspeaker output for economical radio receivers.

Base

9BU

Socket

B9A

Heater

6.3 V

Sections

3

Pentode

High-slope video-output power pentode for driving low-impedance, high-capacitance television loads.

Base

9BA

Socket

B9A

Heater

6.3 V

Sections

1

Pentode-Triode

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

Base

9DX

Socket

B9A

Heater

6.3 V

Sections

2

Pentode-Pentode

Twin power pentode designed especially for compact stereo systems and high-fidelity audio amplifier output stages. Two power-capable pentode sections share one envelope for space-efficient dual-channel amplification.

Base

8JP

Socket

IO

Heater

6.3 V

Sections

2

Pentode-Triode

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

9DX

Socket

B9A

Heater

6.3 V

Sections

2

Pentode

Pentode power amplifier designed for receiver output stages, with documented single-ended Class-A and push-pull Class-A/AB operation. A classic non-beam audio power-output tube.

Base

7S

Socket

IO

Heater

6.3 V

Sections

1

Pentode

Indirectly heated output power pentode designed for AC and automobile-radio audio service. Its glass construction provides conventional low-frequency power amplification for receiver output stages.

Base

7S

Socket

IO

Heater

6.3 V

Sections

1

Pentode

GT-envelope power-amplifier pentode with documented push-pull Class-A ratings. Designed for receiver audio-output service in compact tubular-glass construction.

Base

7S

Socket

IO

Heater

6.3 V

Sections

1

Pentode

Power-amplifier pentode intended for receiver output stages, with single-ended Class-A and push-pull Class-A/AB operating conditions. This GTG variant retains the fundamental 6F6 audio power function.

Base

Not recorded

Socket

IO

Heater

6.3 V

Sections

1

Pentode

Russian 6P6S/6F6S power pentode designed for low-frequency power amplification. Manufacturer documentation identifies it as an output-stage tube and specifies resistance to demanding ambient conditions.

Base

Not recorded

Socket

IO

Heater

6.3 V

Sections

1

Pentode

Power pentode designed for audio-frequency power-amplifier service. Its output-stage characteristics provide low-frequency load drive in radio and general audio equipment.

Base

7S

Socket

B7G

Heater

6.3 V

Sections

1

Pentode

GT-envelope low-current power-amplifier pentode with documented pentode- and triode-connected operation. Designed for audio output where modest power and relatively low current consumption are useful.

Base

7S

Socket

B7G

Heater

6.3 V

Sections

1

Pentode

Power pentode designed for Class-A and push-pull Class-AB/B audio-frequency output service, also applicable to video power amplification.

Base

9GK

Socket

B9A

Heater

6.3 V

Sections

1

Pentode-Triode

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

9LZ

Socket

B9A

Heater

6.3 V

Sections

2

Pentode-Pentode

Twin output pentode designed for stereo audio, push-pull output, and television oscillator/reactance service. Two pentode sections provide flexible dual-channel or paired output operation in one envelope.

Base

Not recorded

Socket

B9A

Heater

6.3 V

Sections

2

Pentode-Triode

High-mu triode plus sharp-cutoff pentode; the triode serves voltage-amplifier or sync-separator functions while the pentode provides television video amplification.

Base

Not recorded

Socket

B9A

Heater

6.3 V

Sections

2

Pentode-Triode

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

Not recorded

Socket

B9A

Heater

6.3 V

Sections

2

Pentode-Triode

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

Base

E9-1

Socket

B9A

Heater

6.3 V

Sections

2

Pentode-Triode

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

B9A

Heater

6.3 V

Sections

2

Pentode

Power pentode designed for oscillator, RF power-amplifier, and frequency-multiplier service. Its defining role is generation and amplification of radio-frequency power rather than audio output.

Base

Not recorded

Socket

B9A

Heater

6.3 V

Sections

1

Pentode

Power pentode designed for Class A audio-frequency and radio-frequency amplification, with unusually high plate-voltage capability and approximately 25 W plate dissipation.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

Pentode

Pulse-rated power pentode for high-voltage switching or pulse amplification, capable of kilovolt operation with pulse duration limited to roughly 10 microseconds.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

Pentode

High-voltage pulse version of the 6L50 power pentode, designed for multi-kilovolt pulse amplification and switching with substantial short-duration current capability.

Base

S9/25

Socket

B9D

Heater

6.3 V

Sections

1

Pentode-Triode

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

9DX

Socket

B9A

Heater

6.3 V

Sections

2

Pentode

Power-amplifier pentode designed for single-ended Class-A and push-pull Class-AB audio output service. Its operating characteristics support conventional loudspeaker-driving output stages.

Base

9N

Socket

B9A

Heater

6.3 V

Sections

1

Pentode

Output pentode designed for low-frequency power amplification. Manufacturer documentation identifies it as a dedicated audio-frequency output tube rather than a small-signal voltage amplifier.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

Pentode

Russian miniature output pentode designed for low-frequency amplifier output stages. Its compact construction provides audio power amplification in receivers and other low-frequency equipment.

Base

Not recorded

Socket

B9A

Heater

6.3 V

Sections

1

Pentode

Russian high-reliability variant of the 6P14P miniature output pentode for low-frequency amplifier stages. It retains the audio power-output function with enhanced service-oriented construction.

Base

Not recorded

Socket

B9A

Heater

6.3 V

Sections

1

Pentode

Power/output pentode designed for low-frequency or audio-frequency output amplification.

Base

Not recorded

Socket

B9A

Heater

6.3 V

Sections

1

Pentode

Power/output pentode designed for low-frequency or audio-frequency output amplification.

Base

Not recorded

Socket

B9A

Heater

6.3 V

Sections

1