Power - Pentode Single (NOT beam) (under 10W) vacuum tubes

Pentode

Directly heated output pentode, co-designated DL92, designed for low-frequency power amplification. Its low-power filament makes it suitable for portable battery receiver output stages.

Base

7BA

Socket

B7G

Heater

2.8 V

Sections

1

Pentode

Directly heated miniature power-output pentode for battery-operated audio amplifiers. Its low filament demand and compact construction provide useful low-frequency output power in portable equipment.

Base

6BX

Socket

B7G

Heater

2.8 V

Sections

1

Pentode

3W4/354-SF directly heated miniature battery audio output pentode with series/parallel 2.8 V 25 mA or 1.4 V 50 mA filament and typical 0.25 W audio output.

Base

7BA

Socket

Not recorded

Heater

2.8 V

Sections

1

Pentode

3Z4 directly heated low-power audio-output pentode for battery receivers, with 1.4 V parallel or 2.8 V series filament operation.

Base

Not recorded

Socket

Not recorded

Heater

1.4 V

Sections

1

Pentode

Professional RF pentode for higher-voltage, higher-dissipation amplifier service, rated around 10 W plate dissipation and approximately 500 V plate voltage.

Base

Not recorded

Socket

MEDIUM7

Heater

6.3 V

Sections

1

Pentode

Seven-pin miniature power pentode designed for audio-frequency power amplification with a controlled-warm-up 100 mA heater. Intended for series-string receiver output stages.

Base

Not recorded

Socket

B7G

Heater

40 V

Sections

1

Pentode

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

Base

6B

Socket

UX6

Heater

25 V

Sections

1

Pentode

Philips audio power pentode for push-pull Class AB service, with a pair delivering approximately 19 W.

Base

P35-32

Socket

P8A

Heater

4 V

Sections

1

Pentode

Philips power pentode for self-biased push-pull Class AB audio output, with a pair producing approximately 12 W.

Base

P35-31

Socket

P8A

Heater

4 V

Sections

1

Pentode

Audio power pentode for moderate push-pull Class AB output, with a pair delivering approximately 12 W.

Base

P35-31

Socket

P8A

Heater

6.3 V

Sections

1

Pentode

Hitachi power pentode with approximately 8.5 W plate dissipation for substantial output-amplifier service.

Base

E7-1

Socket

B7G

Heater

4.7 V

Sections

1

Pentode

High-transconductance series-heater audio power pentode delivering about 1.4 W from a 110 V plate supply.

Base

7CV

Socket

B7G

Heater

50 V

Sections

1

Pentode

Low-voltage audio power pentode for 100 mA series-heater equipment, providing approximately 1.5 W Class A output.

Base

7CV

Socket

B7G

Heater

40 V

Sections

1

Pentode

High-transconductance audio power pentode for transformerless equipment, providing about 1.2 W from a 110 V supply.

Base

7CV

Socket

B7G

Heater

50 V

Sections

1

Pentode

Miniature audio-output power pentode with high power sensitivity at low plate voltage and an integral panel-lamp heater tap.

Base

Not recorded

Socket

B9A

Heater

50 V

Sections

1

Pentode

Beam-power pentode designed for radio-receiver audio-output stages, with high peak-current capability and a tapped heater for panel-lamp operation.

Base

7FZ

Socket

B7G

Heater

50 V

Sections

1

Pentode

Western Electric filamentary power pentode for low-voltage power-amplifier service, with approximately 8 W plate dissipation.

Base

B8-11

Socket

IO

Heater

6.3 V

Sections

1

Pentode

Quick-heating center-tapped-filament power pentode for audio power amplification where rapid warm-up is required.

Base

Not recorded

Socket

IO

Heater

6 V

Sections

1

Pentode

Ruggedized subminiature video power pentode for wideband RF/video amplification from low plate supplies in demanding equipment.

Base

Not recorded

Socket

SUBMINIATURE8

Heater

6.3 V

Sections

1

Pentode

Extremely low-drain directly heated miniature output pentode for hearing aids and battery receivers, also designated 6007.

Base

Not recorded

Socket

B9A

Heater

1.25 V

Sections

1

Pentode

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

Base

512-AX

Socket

B8D

Heater

1.25 V

Sections

1

Pentode

Power pentode designed for radio-frequency transmitting, Class-C power amplification, oscillation, or frequency-multiplier service.

Base

Not recorded

Socket

B8D

Heater

1.25 V

Sections

1

Pentode

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

Base

7CV

Socket

B7G

Heater

60 V

Sections

1

Pentode

Sharp-cutoff power pentode designed especially for pulse-amplifier applications.

Base

9BV

Socket

B9A

Heater

6.3 V

Sections

1

Pentode

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

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

Pentode

Power pentode designed for radio-frequency transmitting, Class-C power amplification, oscillation, or frequency-multiplier 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

Not recorded

Heater

1.25 V

Sections

1

Pentode

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

Base

5686

Socket

Not recorded

Heater

6.3 V

Sections

1

Pentode

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

Base

E7-1

Socket

B7G

Heater

6.3 V

Sections

1

Pentode

Subminiature directly heated power pentode for wearable and portable battery equipment with very low current consumption.

Base

Not recorded

Socket

Not recorded

Heater

2.64 V

Sections

1

Pentode

High-transconductance pentode for television video output, cathode-follower, and other wideband power-amplifier applications.

Base

B8-21

Socket

IO

Heater

6.3 V

Sections

1

Pentode

Extended-life high-transconductance pentode intended for output stages in broadband amplifiers.

Base

Not recorded

Socket

IO

Heater

6.3 V

Sections

1

Pentode

Miniature industrial audio power pentode providing approximately 1.1 W output from a compact low-dissipation design.

Base

7BK

Socket

B7G

Heater

6.3 V

Sections

1

Pentode

High-reliability miniature 6AK6-family power pentode for audio-frequency output and low-power amplifier service.

Base

Not recorded

Socket

B7G

Heater

6.3 V

Sections

1

Pentode

Miniature power pentode for single-ended or two-tube Class A audio-output service.

Base

6CH

Socket

B7G

Heater

6.3 V

Sections

1

Pentode

High-efficiency wideband power pentode for RF, AF, and high-frequency output-amplifier applications.

Base

7BD

Socket

B7G

Heater

6.3 V

Sections

1

Pentode

Ruggedized wideband power pentode for RF, video, frequency-divider, and pulse service in professional or military equipment.

Base

Not recorded

Socket

B7G

Heater

6.3 V

Sections

1

Pentode

Miniature audio power pentode delivering approximately 3.4 W single-ended Class A output.

Base

6CC

Socket

B7G

Heater

6.3 V

Sections

1

Pentode

Indirectly heated power pentode for moderate audio-frequency output amplification.

Base

7BZ

Socket

B9A

Heater

6.3 V

Sections

1

Pentode

High-transconductance power pentode for Class A audio output, producing approximately 2.8 W.

Base

9CR

Socket

B9A

Heater

6.3 V

Sections

1

Pentode

High-transconductance power pentode providing approximately 4.2 W single-ended Class A output.

Base

OCTAL

Socket

IO

Heater

6.3 V

Sections

1

Pentode

Power pentode optimized for wideband video-frequency amplification and general Class A output service.

Base

9AR

Socket

B9A

Heater

6.3 V

Sections

1

Pentode

Power pentode for automobile-radio audio output, providing about 3 W single-ended or 6.5 W push-pull.

Base

Not recorded

Socket

B7G

Heater

6.3 V

Sections

1

Pentode

Power pentode designed for the audio-output stage of television receivers. Its compact construction provides low-frequency output power for driving the receiver loudspeaker.

Base

7CV

Socket

B9A

Heater

6.3 V

Sections

1

Pentode

Seven-pin miniature power pentode intended for transformer-operated audio-output stages in radio and television receivers. Its compact construction provides conventional low-frequency output power.

Base

7CV

Socket

B7G

Heater

6.3 V

Sections

1

Pentode

Intermediate-power pentode whose operating characteristics and applications follow the type 41 family. Designed primarily for receiver audio-output service rather than small-signal amplification.

Base

Not recorded

Socket

IO

Heater

6.3 V

Sections

1

Pentode

Power pentode intended for the output stage of wideband amplifiers. Its power-capable construction supports broadband load drive rather than conventional low-level signal amplification.

Base

K8/18

Socket

IO

Heater

6.3 V

Sections

1

Pentode

Power pentode intended as the output stage of wideband amplifiers. It provides load-driving capability across a broad frequency range rather than serving as a conventional small-signal pentode.

Base

S9/12

Socket

B9A

Heater

6.3 V

Sections

1