Electronic tube type
Power - Triode vacuum tubes
Power - Triode records in Tube Tinker cover 802 tube designations, including 2,091 preserved original datasheets. Compare bases, sockets, heater requirements, construction, exact variations, and directional replacement options.
- Tube records
- 802
- Original datasheets
- 2,091
- Variation families
- 23
- Tubes with alternatives
- 50
About Power - Triode tubes
This qualifies if the tube has a max plat dissipation over 10 W and under 100W. Also the tube must NOT qualify for "VerticalSweep".
Electrical range
- Nominal heater voltage
- 1.2–75 V
- Nominal heater current
- 0.06–4,300 A
Common power - triode characteristics
These are the most frequently recorded attributes among tubes in this category.
Bases
- UX417
- 4D9
- 8BD8
- 8B5
- 5S3
- 7AB3
- 7B3
- 12GY2
Sockets
- UX489
- IO60
- B422
- MEDIUM4BAYONET22
- B9A12
- B12C9
- J49
- JUMBO4B9
Constructions
- Triode729
- Triode-Triode73
Power - Triode tube list
Page 8 of 17
82402 Triode
Eimac 8240/2 family water-cooled low-mu power triode; suffix ratings not independently established.
- Base
- Not recorded
- Socket
- Not recorded
- Heater
- 7.5 V
- Sections
- 1
8242 Triode
Water-cooled Eimac medium-mu power triode for amplifier, oscillator, modulator, and RF power service.
- Base
- Not recorded
- Socket
- Not recorded
- Heater
- 7.5 V
- Sections
- 1
82422 Triode
Eimac 8242/2 family water-cooled medium-mu power triode; suffix ratings not independently established.
- Base
- Not recorded
- Socket
- Not recorded
- Heater
- 7.5 V
- Sections
- 1
8243 Triode
Water-cooled Eimac medium-mu power triode for amplifier, oscillator, modulator, and RF power service, with flexible grid and filament leads.
- Base
- Not recorded
- Socket
- Not recorded
- Heater
- 7.5 V
- Sections
- 1
825 Triode
Low-mu version of the Taylor 756 power triode for transmitting and RF power service.
- Base
- Not recorded
- Socket
- UX4
- Heater
- 7.5 V
- Sections
- 1
830 Triode
Transmitting power triode for AF/RF power amplification, modulation, and oscillator service, with 60-watt maximum plate dissipation.
- Base
- Not recorded
- Socket
- MEDIUM4BAYONET
- Heater
- 10 V
- Sections
- 1
830B Triode
Thoriated-tungsten power triode for audio-modulator and RF amplifier or oscillator service, principally as a renewal type. Approximately 75 W plate dissipation and kilovolt-class operation support moderate transmitting and modulation applications.
- Base
- Not recorded
- Socket
- UX4
- Heater
- 10 V
- Sections
- 1
831 Triode
High-power directly heated triode; available source material does not establish a narrower functional application confidently.
- Base
- Not recorded
- Socket
- Not recorded
- Heater
- 11 V
- Sections
- 1
834 Triode
Directly heated radiation-cooled power triode for RF oscillator and amplifier service, primarily as a replacement type. Approximately 50 W plate dissipation and kilovolt plate capability provide moderate transmitter output.
- Base
- Not recorded
- Socket
- UX4
- Heater
- 7.5 V
- Sections
- 1
835 Triode
Thoriated-tungsten transmitting triode for AF power/modulator and RF amplifier/oscillator service, with 75-watt maximum plate dissipation.
- Base
- Not recorded
- Socket
- UX4
- Heater
- 10 V
- Sections
- 1
838 Triode
High-mu zero-bias power triode for Class B audio amplification and RF oscillator or power-amplifier service. Its high amplification factor, roughly 100 W plate dissipation, and kilovolt operation provide strong gain in audio and transmitting stages.
- Base
- Not recorded
- Socket
- UX4
- Heater
- 10 V
- Sections
- 1
841 Triode
Thoriated-tungsten transmitting power triode retained primarily for renewal service. High plate resistance, moderate amplification factor, and approximately 15 W plate dissipation represent an early moderate-power transmitting design.
- Base
- Not recorded
- Socket
- UX4
- Heater
- 7.5 V
- Sections
- 1
841A Triode
Taylor transmitting triode for oscillator, RF power-amplifier, and audio-modulator service. Approximately 50 W plate dissipation and kilovolt-class operation provide moderate transmitter and modulation power.
- Base
- Not recorded
- Socket
- UX4
- Heater
- 10 V
- Sections
- 1
841SW Triode
Taylor carbon-anode triode designed especially for diathermy equipment and Class C oscillator or RF power-amplifier service. Its specialized medical RF-heating role combines with moderate transmitting power and kilovolt plate operation.
- Base
- Not recorded
- Socket
- Not recorded
- Heater
- 10 V
- Sections
- 1
842 Triode
Thoriated-tungsten power triode designed for Class A audio-frequency power amplification and modulator service. Low amplification factor and moderate plate dissipation favor high-current, low-gain audio output operation.
- Base
- Not recorded
- Socket
- UX4
- Heater
- 7.5 V
- Sections
- 1
843 Triode
Heater-cathode power triode designed for RF amplifier and oscillator service. Moderate plate dissipation and several-hundred-volt operation provide useful radio-frequency output from an indirectly heated cathode.
- Base
- Not recorded
- Socket
- UX4
- Heater
- 2.5 V
- Sections
- 1
8431 Triode-Triode
Medium-mu double triode designed for continuous Class-C RF amplifier service around 200 MHz, intended for sustained high-frequency power amplification.
- Base
- Not recorded
- Socket
- B9A
- Heater
- 12.6 V
- Sections
- 2
845 Triode
Classic directly heated low-mu power triode for Class A and Class AB audio power or modulator service. Low plate resistance, roughly 100 W plate dissipation, and kilovolt capability support substantial high-quality audio output.
- Base
- Not recorded
- Socket
- UX4
- Heater
- 10 V
- Sections
- 1
852 Triode
Directly heated transmitting triode for Class C RF power amplification and oscillator service. Rated for 100 W plate dissipation and 3 kV plate voltage, producing approximately 165 W RF output at full ratings to about 30 MHz.
- Base
- Not recorded
- Socket
- MEDIUM4BAYONET
- Heater
- 10 V
- Sections
- 1
8533 Triode
Metal-ceramic planar triode for grid- or plate-pulsed oscillator, amplifier, frequency-multiplier, and switching service to roughly 3 GHz. It combines 8 kV plate capability with pulse cathode current to about 7.5 A.
- Base
- Not recorded
- Socket
- Not recorded
- Heater
- 6.3 V
- Sections
- 1
8534 Triode
Miniature ruggedized ceramic-metal planar triode for continuous-wave and pulsed service to approximately 3 GHz. Its high transconductance and pulse cathode-current capability suit compact high-frequency pulse amplifiers and oscillators.
- Base
- Not recorded
- Socket
- Not recorded
- Heater
- 6.3 V
- Sections
- 1
859 Triode
Water-cooled high-power triode designed for substantial radio-frequency power service at frequencies extending to approximately 50 MHz.
- Base
- Not recorded
- Socket
- Not recorded
- Heater
- 22 V
- Sections
- 1
860 Triode
High-mu transmitting triode designed for radio-frequency power-amplifier and oscillator service in professional transmitting equipment.
- Base
- Not recorded
- Socket
- UX4
- Heater
- 10 V
- Sections
- 1
861 Triode
High-mu transmitting triode designed for radio-frequency power-amplifier and oscillator service in professional transmitting equipment.
- Base
- Not recorded
- Socket
- UX4
- Heater
- 11 V
- Sections
- 1
862 Triode
Three-electrode water-cooled transmitting power triode for RF amplifier, oscillator, and Class B modulator service.
- Base
- Not recorded
- Socket
- UX4
- Heater
- 33 V
- Sections
- 1
865 Triode
High-mu transmitting triode retained primarily for renewal service in older RF power equipment.
- Base
- Not recorded
- Socket
- UX4
- Heater
- 7.5 V
- Sections
- 1
8796 Triode
High-power general-purpose transmitting triode capable of substantial continuous RF output for Class C amplifier and oscillator service.
- Base
- Not recorded
- Socket
- Not recorded
- Heater
- 16.5 V
- Sections
- 1
889 Triode
Water-cooled high-power triode for RF power amplification, oscillator operation, and Class B modulation in substantial transmitting equipment.
- Base
- Not recorded
- Socket
- Not recorded
- Heater
- 11 V
- Sections
- 1
889A Triode
Water-cooled high-power transmitting triode for broadcasting stations and industrial RF-heating applications, also supporting RF oscillator and amplifier service.
- Base
- Not recorded
- Socket
- Not recorded
- Heater
- 11 V
- Sections
- 1
889R Triode
Forced-air-cooled high-power triode for RF power amplification, oscillator operation, and Class B modulation.
- Base
- Not recorded
- Socket
- Not recorded
- Heater
- 11 V
- Sections
- 1
889RA Triode
Forced-air-cooled transmitting triode version of 889A with improved radiator design for high-power RF service.
- Base
- Not recorded
- Socket
- Not recorded
- Heater
- 11 V
- Sections
- 1
892 Triode
Water-cooled high-power transmitting triode widely used in broadcast transmitters and RF industrial-heating equipment.
- Base
- Not recorded
- Socket
- Not recorded
- Heater
- 22 V
- Sections
- 1
892R Triode
High-power transmitting triode for RF amplification, oscillation, modulation, or related transmitter and industrial service.
- Base
- Not recorded
- Socket
- Not recorded
- Heater
- 22 V
- Sections
- 1
893 Triode
Water-cooled transmitting triode for RF amplifier, oscillator, and Class-B modulator service.
- Base
- Not recorded
- Socket
- Not recorded
- Heater
- 10 V
- Sections
- 1
8938 Triode
High-power transmitting triode for RF amplification, oscillation, modulation, or related transmitter and industrial service.
- Base
- Not recorded
- Socket
- Not recorded
- Heater
- 5 V
- Sections
- 1
893R Triode
High-power transmitting triode for RF amplification, oscillation, modulation, or related transmitter and industrial service.
- Base
- Not recorded
- Socket
- Not recorded
- Heater
- 10 V
- Sections
- 1
895 Triode
Water-cooled transmitting triode for Class-B modulation, RF power amplification, and oscillator service with very high plate-dissipation capability.
- Base
- Not recorded
- Socket
- Not recorded
- Heater
- 20 V
- Sections
- 1
895R Triode
High-power transmitting triode for RF amplification, oscillation, modulation, or related transmitter and industrial service.
- Base
- Not recorded
- Socket
- Not recorded
- Heater
- 20 V
- Sections
- 1
898A Triode
High-power transmitting triode for RF amplification, oscillation, modulation, or related transmitter and industrial service.
- Base
- Not recorded
- Socket
- Not recorded
- Heater
- Not recorded
- Sections
- 1
899A Triode
High-power transmitting triode for RF amplification, oscillation, modulation, or related transmitter and industrial service.
- Base
- Not recorded
- Socket
- Not recorded
- Heater
- 15 V
- Sections
- 1
8C22 Triode
8C22 power - triode electronic tube specifications and datasheets.
- Base
- Not recorded
- Socket
- Not recorded
- Heater
- 4.1 V
- Sections
- 1
8C23 Triode
8C23 power - triode electronic tube specifications and datasheets.
- Base
- Not recorded
- Socket
- Not recorded
- Heater
- 4.1 V
- Sections
- 1
949A Triode
High-power transmitting triode for RF amplification, oscillation, modulation, or related transmitter and industrial service.
- Base
- Not recorded
- Socket
- JUMBO3
- Heater
- Not recorded
- Sections
- 1
949H Triode
High-power transmitting triode for RF amplification, oscillation, modulation, or related transmitter and industrial service.
- Base
- Not recorded
- Socket
- JUMBO3
- Heater
- Not recorded
- Sections
- 1
9C24 Triode
Water-cooled grounded-grid transmitting triode for Class B and Class C RF service through approximately 220 MHz. Its roughly 5 kW plate-dissipation capability suits substantial VHF communications and industrial transmitters.
- Base
- Not recorded
- Socket
- Not recorded
- Heater
- 6.3 V
- Sections
- 1
A0897 Triode
High-mu planar transmitting triode designed for grounded-grid microwave oscillator and amplifier service. Its low-inductance metal-ceramic construction and very low interelectrode capacitance support operation well into the microwave frequency range.
- Base
- Not recorded
- Socket
- Not recorded
- Heater
- 6.3 V
- Sections
- 1
A1834 Triode
High-mu planar transmitting triode designed for grounded-grid microwave oscillator and amplifier service. Its low-inductance metal-ceramic construction and very low interelectrode capacitance support operation well into the microwave frequency range.
- Base
- Not recorded
- Socket
- IO
- Heater
- 6.3 V
- Sections
- 2
ACM3 Triode
Triode for general electronic service. Available source material does not establish a narrower functional application confidently.
- Base
- Not recorded
- Socket
- Not recorded
- Heater
- 6 V
- Sections
- 1
