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

Pentode

Subminiature output pentode designed for hearing aids and other very-low-power audio equipment. Its directly heated miniature construction provides useful output while minimizing battery drain.

Base

Subminiature

Socket

WIRE8

Heater

1.25 V

Sections

1

Pentode

Subminiature hearing-aid output pentode designed for approximately 22.5 V HT supplies. Its low-power construction supports miniature wearable audio equipment with limited battery voltage.

Base

Subminiature

Socket

WIRE8

Heater

1.25 V

Sections

1

Pentode

Directly heated output pentode designed for low-frequency power amplification. Its filamentary construction supports battery-operated receiver audio stages requiring useful output with low heater demand.

Base

B7G

Socket

B7G

Heater

1.4 V

Sections

1

Pentode

Centre-tapped-filament battery output pentode. Designed for portable audio power amplification, its filament arrangement provides supply flexibility in battery-operated receivers.

Base

Miniature

Socket

B7G

Heater

1.4 V

Sections

1

Pentode

Centre-tapped-filament miniature battery output pentode. Its compact construction and flexible filament arrangement support low-frequency power amplification in portable receiving equipment.

Base

Miniature

Socket

B7G

Heater

1.4 V

Sections

1

Pentode

Directly heated output pentode designed for low-frequency power amplification. Its filamentary cathode and battery-oriented operating conditions suit portable receiver audio-output stages.

Base

Miniature

Socket

B7G

Heater

1.4 V

Sections

1

Pentode

High-efficiency indirectly heated Marconi output pentode designed to provide substantial output at approximately 200 V with comparatively small grid drive. Intended specifically as a receiver output valve.

Base

Not recorded

Socket

B5

Heater

16 V

Sections

1

Pentode

Power/output pentode designed for audio-frequency power amplification in single-ended or push-pull output stages.

Base

Not recorded

Socket

B4

Heater

4 V

Sections

1

Pentode

Power/output pentode designed for audio-frequency power amplification in single-ended or push-pull output stages.

Base

Not recorded

Socket

Not recorded

Heater

4 V

Sections

1

Pentode

Special-quality long-life power/output pentode designed for stable professional, industrial, or wideband amplifier service.

Base

NOVAL

Socket

B9A

Heater

6.3 V

Sections

1

Pentode

Special-quality long-life power/output pentode designed for stable professional, industrial, or wideband amplifier service.

Base

Noval

Socket

B9A

Heater

6.3 V

Sections

1

Pentode

Power/output pentode designed for audio-frequency power amplification in single-ended or push-pull output stages.

Base

Not recorded

Socket

P8A

Heater

6.3 V

Sections

1

Pentode

EL11EL11N power - pentode single (not beam) (under 10w) electronic tube specifications and datasheets.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

Pentode

Power/output pentode designed for audio-frequency power amplification in single-ended or push-pull output stages.

Base

Not recorded

Socket

Y8A

Heater

6.3 V

Sections

1

Pentode

Low-current-heater output pentode for AC/DC and automobile-radio audio stages.

Base

Octal

Socket

IO

Heater

6.3 V

Sections

1

Pentode

High-sensitivity output pentode for audio power amplification in AC mains-operated equipment.

Base

Not recorded

Socket

IO

Heater

6.3 V

Sections

1

Pentode

High-sensitivity receiving power pentode for audio-frequency loudspeaker output.

Base

B8A

Socket

B8A

Heater

6.3 V

Sections

1

Pentode

Low-heater-current output pentode designed particularly for automobile-radio audio stages.

Base

B8A

Socket

B8A

Heater

6.3 V

Sections

1

Pentode

Low-voltage audio power pentode providing approximately 1 W from only a 100 V plate supply.

Base

B8D/F

Socket

WIRE8

Heater

6.3 V

Sections

1

Pentode

High-transconductance wideband power pentode for broadband and output-amplifier service.

Base

Not recorded

Socket

B9A

Heater

6.3 V

Sections

1

Pentode

Special-quality long-life rugged EL803-family wideband power pentode for professional broadband amplifiers.

Base

Not recorded

Socket

B9A

Heater

6.3 V

Sections

1

Pentode

Power pentode designed for video-frequency amplification. Its output capability and wideband response suit television and professional video stages requiring substantially more load drive than ordinary signal pentodes.

Base

Not recorded

Socket

B9A

Heater

6.3 V

Sections

1

Pentode

EL844 audio-frequency output pentode. Manufacturer documentation identifies it as a dedicated low-frequency power tube for amplifier output stages.

Base

Not recorded

Socket

B9A

Heater

6.3 V

Sections

1

Pentode

Output pentode rated for approximately 6 W anode dissipation, suitable for mobile-equipment RF amplification to about 120 MHz or conventional audio-frequency output service.

Base

B9A

Socket

B9A

Heater

6.3 V

Sections

1

Pentode

High-transconductance power pentode designed for wideband and professional amplifier service. Its steep slope and output capability support demanding broadband load-driving stages.

Base

Not recorded

Socket

B9A

Heater

6.3 V

Sections

1

Pentode

Output pentode designed for car-radio and audio service, with pairs of heaters usable in series from a 12 V battery. Its compact power stage suits mobile audio equipment.

Base

Not recorded

Socket

B7G

Heater

6.3 V

Sections

1

Pentode

Pentode designed for output, amplifier, or modulator service. Manufacturer documentation provides heater data, electrical ratings, operating limits, and characteristics for power-capable applications.

Base

Not recorded

Socket

B7G

Heater

30 V

Sections

1

Pentode

Co-designation of the EL861 steep-slope output pentode, designed for long service life in output amplifiers used in long-distance communications equipment. It combines broadband power capability with extended professional life.

Base

Not recorded

Socket

Not recorded

Heater

20 V

Sections

1

Pentode

Directly heated battery output pentode for economical Class A audio power service in portable receivers.

Base

Not recorded

Socket

IO

Heater

2 V

Sections

1

Pentode

Low-filament-current directly heated power pentode for Class A audio output in battery receivers.

Base

P35(30)

Socket

Not recorded

Heater

2 V

Sections

1

Pentode

Directly heated output pentode designed specifically for low-drain 2 V battery receivers.

Base

Not recorded

Socket

Not recorded

Heater

2 V

Sections

1

Pentode

Transmitting pentode for RF amplification and oscillator service.

Base

Not recorded

Socket

Not recorded

Heater

12.6 V

Sections

1

Pentode

Special-quality rugged output pentode for professional equipment exposed to shock and vibration.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

Pentode

Cossor power pentode for receiving-set amplification and audio-output service.

Base

Not recorded

Socket

B5

Heater

4 V

Sections

1

Pentode

Osram power pentode for conventional audio-frequency amplification and output service.

Base

Not recorded

Socket

B5

Heater

4 V

Sections

1

Pentode

Marconi miniature output pentode with an economical 4 V, 100 mA heater for audio power service.

Base

Not recorded

Socket

B7G

Heater

4 V

Sections

1

Pentode

High-transconductance Marconi pentode designed specifically for television video-output amplification.

Base

Not recorded

Socket

B9A

Heater

15 V

Sections

1

Pentode

Osram series-heater power pentode for receiver audio-output service.

Base

Not recorded

Socket

B7

Heater

13 V

Sections

1

Pentode

High-transconductance Osram series-heater power pentode for transformerless receiver output stages.

Base

Not recorded

Socket

B7

Heater

26 V

Sections

1

Pentode

Miniature high-transconductance power pentode for receiver audio-output service.

Base

Not recorded

Socket

B7G

Heater

13 V

Sections

1

Pentode

High-transconductance Osram power pentode for substantial receiver audio output.

Base

Not recorded

Socket

B7

Heater

4 V

Sections

1

Pentode

Osram power pentode for moderate audio-output service from conventional 4 V heater equipment.

Base

Not recorded

Socket

B7

Heater

4 V

Sections

1

Pentode

Marconi miniature output pentode designed for audio power service. Its compact construction provides conventional low-frequency load drive in receiver and amplifier output stages.

Base

Not recorded

Socket

B7G

Heater

6.3 V

Sections

1

Pentode

Marconi miniature high-slope output pentode designed for receiver power stages. Its increased transconductance provides useful audio output from compact receiving equipment.

Base

Not recorded

Socket

B7G

Heater

6.3 V

Sections

1

Pentode

N78GEC power - pentode single (not beam) (under 10w) electronic tube specifications and datasheets.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

Pentode

Small directly heated transmitting pentode designed for RF Class-B/C amplification and modulated service. Its compact power construction supports transmitter output stages.

Base

Not recorded

Socket

Not recorded

Heater

4 V

Sections

1

Pentode

PC03/3A directly heated transmitting pentode variant using a 2 V oxide filament. Designed for RF power amplification and related transmitter service.

Base

Not recorded

Socket

Not recorded

Heater

2 V

Sections

1

Pentode

PC03/3B transmitting pentode variant, electrically matching the PC03/3A apart from heater differences. Intended for compact radio-frequency power service.

Base

Not recorded

Socket

Not recorded

Heater

4 V

Sections

1