Large transmitting triode for RF power amplification, oscillation, modulation, and audio-frequency power service. Rated for 1 kW plate dissipation, operation to about 50 MHz, and multi-kilowatt RF or push-pull audio output.
Three-electrode transmitting power tube for Class B audio amplification, modulation, Class C RF power amplification, and oscillation. Rated for 125 W plate dissipation with full-rating operation specified to approximately 15 MHz.
Directly heated graphite-anode radiation-cooled triode for relay and vibrator amplifiers plus low-RF and audio-frequency service, mechanically and electrically identical to V1505.
4 pins - SPECIAL4 - Special 4-contact transmitting-tube base
Very large Eimac transmitting triode for high-power RF amplifier, oscillator, modulator, and audio-power service. Rated for 2 kW plate dissipation, it supports multi-kilowatt RF output and push-pull audio output approaching 9 kW.
Filamentary power triode intended for transmitting service as an RF amplifier or oscillator, with operating data emphasizing substantial plate input and output power rather than small-signal amplification.
Power triode intended for power-amplifier service, with manufacturer operating data centered on useful output power and comparatively heavy plate operation. Documentation supports treatment as a power device rather than a small-signal voltage amplifier.
Power triode intended for transmitting applications, including RF amplification and oscillator service. Published operating conditions emphasize radio-frequency power generation and substantial plate loading.
High-power filamentary triode widely specified for RF amplifier and oscillator duty and also usable as an audio-frequency power amplifier or modulator. Manufacturer data include high-voltage plate operation and substantial output power.
Transmitting power triode of the 211 family, intended principally for RF amplifier and oscillator service while also supporting modulation or audio power applications. Its ratings reflect high-voltage, substantial-power operation.
Large transmitting power triode intended for RF amplifier and oscillator service, with manufacturer data emphasizing high plate voltage, substantial dissipation, and power output. It also supports power-frequency applications where documented.
High-power filamentary transmitting triode for RF amplification and oscillator operation. Published ratings place it firmly in heavy transmitting service, with substantial plate voltage, dissipation, and output capability.
Water-cooled high-power transmitting triode intended for RF service. Western Electric data show very high plate-voltage and dissipation capability, making it a specialized industrial transmitter tube rather than a conventional power-output triode.
Water-cooled transmitting power triode intended for high-power RF operation. Western Electric catalog data specify kilowatt-class output and plate dissipation with several-kilovolt plate operation.
Very-high-power water-cooled transmitting triode for RF service. Western Electric catalog data show operation at plate voltages up to about 20 kV with multi-kilowatt output and exceptionally high plate dissipation.
Rugged coaxial general-purpose transmitting triode for RF applications. Machlett describes low-inductance RF electrode terminals and high-dissipation construction, with operation at very high plate voltage for demanding industrial radio-frequency service.
Filamentary transmitting power triode intended for RF amplifier and oscillator duty. Manufacturer operating information emphasizes radio-frequency power generation and substantial plate loading rather than receiving-tube amplification.
Transmitting power triode intended for RF amplifier and oscillator service. Its manufacturer ratings and operating conditions identify it as a substantial radio-frequency power device suitable for transmitter applications.
Filamentary transmitting triode designed for radio-frequency power amplification and oscillator operation. Published service data emphasize transmitter duty, high plate loading, and useful RF output.
Eimac transmitting triode intended for RF power amplification and oscillator service. Published Class-C operating data support hundreds of watts of RF output, with full-input ratings extending into the VHF-range edge.
Eimac low-mu transmitting power triode for RF amplifier and oscillator service. Manufacturer operating data emphasize Class-C radio-frequency power generation with substantial plate voltage, current, and output capability.
5 pins - MEDIUM5 - Medium 5-contact transmitting-tube base
Filamentary air-cooled power triode for high-frequency oscillator or amplifier service, also suitable as a modulator or low-frequency power amplifier. Western Electric data show substantial Class-C RF output and low interelectrode capacitance.
5 pins - MEDIUM5 - Medium 5-contact transmitting-tube base
Large directly heated Western Electric transmitting power triode for high-power audio and RF service. With roughly 1.2 kW plate dissipation and 3 kV plate capability, it was intended for major power-amplifier and transmitter installations.
Taylor directly heated power triode intended particularly for diathermy and RF oscillator service. Its roughly 125 W plate dissipation and kilovolt-class plate rating suit industrial high-frequency generation rather than ordinary receiving or low-power audio applications.
SPECIAL4 - Special 4-contact transmitting-tube base
Eimac medium-mu power triode for audio power amplification, modulation, RF amplification, and oscillator service. With about 300 W plate dissipation and 3 kV capability, it provides substantial linear or transmitting power through roughly 40 MHz.
Western Electric directly heated power triode designed for Class A audio amplification. Its low amplification factor and roughly 250 W plate dissipation support substantial linear service, with published single-ended output around 50 W.
Eimac medium-mu transmitting power triode for RF amplification, oscillation, and modulation. Rated around 3.5 kV and 200 W plate dissipation, its low capacitances support useful transmitter operation to roughly 150 MHz.
Western Electric water-cooled transmitting triode for very-high-power Class B RF service. Published operation reaches tens of kilowatts of RF output, making it a tube for major fixed broadcast, communications, and industrial transmitter installations.
Western Electric thoriated-tungsten air-cooled transmitting triode for RF power service. Its 125 W plate dissipation, 1.5 kV plate rating, relatively high amplification factor, and low capacitances suit medium-power transmitters through roughly 30 MHz.
Eimac 3-400Z compact high-mu zero-bias power triode for grounded-grid Class B audio and RF amplification, with oscillator capability. Its approximately 400 W plate dissipation and high amplification factor provide strong power gain through VHF frequencies.
Western Electric water-cooled transmitting triode for high-power Class B RF service. Approximately 25 kW plate dissipation and 20 kV plate capability place it in major fixed transmitter installations requiring very large radio-frequency output.
Western Electric forced-air-cooled transmitting power triode designed for high-power Class B audio service. Its 5 kW plate dissipation and 10 kV plate rating suit large audio-frequency modulator and power-amplifier stages associated with transmitters.
Western Electric directly heated water-cooled transmitting triode for very-high-power RF service. Approximately 25 kW plate dissipation and 20 kV plate capability make it suitable for major communications and broadcast transmitter installations.
Western Electric directly heated water-cooled transmitting triode for high-power RF service. With roughly 10 kW plate dissipation and plate ratings to 18 kV, it supports substantial continuous radio-frequency output in large transmitters.
Western Electric directly heated forced-air-cooled transmitting triode for high-power RF service. It combines an 18 kV plate capability with approximately 5 kW plate dissipation, providing a forced-air-cooled alternative for large transmitter stages.
5 pins - SPECIAL5 - Special 5-pin transmitting-tube base
Eimac 3-500Z compact high-mu power triode for zero-bias Class AB2 audio and RF linear amplification as well as RF power service. Its roughly 500 W plate dissipation and high amplification factor suit high-power linear amplifier stages.
Western Electric water-cooled transmitting triode for high-power modulation, amplification, and oscillator service. Its approximately 22.5 kW plate dissipation and 12.5 kV plate rating provide enormous audio or RF power for major transmitter installations.
Western Electric directly heated air-cooled transmitting triode for high-power Class C RF service. Roughly 400 W plate dissipation and 4 kV plate capability support substantial communications and broadcast transmitter output stages.
Machlett air-cooled thoriated-tungsten transmitting triode for modulator, amplifier, and oscillator service. Its approximately 750 W plate dissipation and 2.5 kV plate rating support substantial RF output and high-power audio modulation.
Standard Valves 3C/150-A directly heated thoriated-tungsten RF power triode for broadcast transmitters and modulators, rated 2500 V anode, 150 W dissipation and 10 V 3.4 A filament.
4 pins - GIANT4BAYONET - Giant 4-contact bayonet base
Industrial power triode intended for substantial radio-frequency power service. Manufacturer documentation places it in transmitting-class operation, with ratings and operating data centered on high-power RF amplification.
Large transmitting triode for RF power amplification, oscillation, modulation, and audio-frequency power service. Rated for 1 kW plate dissipation, operation to about 50 MHz, and multi-kilowatt RF or push-pull audio output.
Three-electrode transmitting power tube for Class B audio amplification, modulation, Class C RF power amplification, and oscillation. Rated for 125 W plate dissipation with full-rating operation specified to approximately 15 MHz.
Directly heated graphite-anode radiation-cooled triode for relay and vibrator amplifiers plus low-RF and audio-frequency service, mechanically and electrically identical to V1505.
4 pins - SPECIAL4 - Special 4-contact transmitting-tube base
Very large Eimac transmitting triode for high-power RF amplifier, oscillator, modulator, and audio-power service. Rated for 2 kW plate dissipation, it supports multi-kilowatt RF output and push-pull audio output approaching 9 kW.
Filamentary power triode intended for transmitting service as an RF amplifier or oscillator, with operating data emphasizing substantial plate input and output power rather than small-signal amplification.
Power triode intended for power-amplifier service, with manufacturer operating data centered on useful output power and comparatively heavy plate operation. Documentation supports treatment as a power device rather than a small-signal voltage amplifier.
Power triode intended for transmitting applications, including RF amplification and oscillator service. Published operating conditions emphasize radio-frequency power generation and substantial plate loading.
High-power filamentary triode widely specified for RF amplifier and oscillator duty and also usable as an audio-frequency power amplifier or modulator. Manufacturer data include high-voltage plate operation and substantial output power.
Transmitting power triode of the 211 family, intended principally for RF amplifier and oscillator service while also supporting modulation or audio power applications. Its ratings reflect high-voltage, substantial-power operation.
Large transmitting power triode intended for RF amplifier and oscillator service, with manufacturer data emphasizing high plate voltage, substantial dissipation, and power output. It also supports power-frequency applications where documented.
High-power filamentary transmitting triode for RF amplification and oscillator operation. Published ratings place it firmly in heavy transmitting service, with substantial plate voltage, dissipation, and output capability.
Water-cooled high-power transmitting triode intended for RF service. Western Electric data show very high plate-voltage and dissipation capability, making it a specialized industrial transmitter tube rather than a conventional power-output triode.
Water-cooled transmitting power triode intended for high-power RF operation. Western Electric catalog data specify kilowatt-class output and plate dissipation with several-kilovolt plate operation.
Very-high-power water-cooled transmitting triode for RF service. Western Electric catalog data show operation at plate voltages up to about 20 kV with multi-kilowatt output and exceptionally high plate dissipation.
Rugged coaxial general-purpose transmitting triode for RF applications. Machlett describes low-inductance RF electrode terminals and high-dissipation construction, with operation at very high plate voltage for demanding industrial radio-frequency service.
Filamentary transmitting power triode intended for RF amplifier and oscillator duty. Manufacturer operating information emphasizes radio-frequency power generation and substantial plate loading rather than receiving-tube amplification.
Transmitting power triode intended for RF amplifier and oscillator service. Its manufacturer ratings and operating conditions identify it as a substantial radio-frequency power device suitable for transmitter applications.
Filamentary transmitting triode designed for radio-frequency power amplification and oscillator operation. Published service data emphasize transmitter duty, high plate loading, and useful RF output.
Eimac transmitting triode intended for RF power amplification and oscillator service. Published Class-C operating data support hundreds of watts of RF output, with full-input ratings extending into the VHF-range edge.
Eimac low-mu transmitting power triode for RF amplifier and oscillator service. Manufacturer operating data emphasize Class-C radio-frequency power generation with substantial plate voltage, current, and output capability.
5 pins - MEDIUM5 - Medium 5-contact transmitting-tube base
Filamentary air-cooled power triode for high-frequency oscillator or amplifier service, also suitable as a modulator or low-frequency power amplifier. Western Electric data show substantial Class-C RF output and low interelectrode capacitance.
5 pins - MEDIUM5 - Medium 5-contact transmitting-tube base
Large directly heated Western Electric transmitting power triode for high-power audio and RF service. With roughly 1.2 kW plate dissipation and 3 kV plate capability, it was intended for major power-amplifier and transmitter installations.
Taylor directly heated power triode intended particularly for diathermy and RF oscillator service. Its roughly 125 W plate dissipation and kilovolt-class plate rating suit industrial high-frequency generation rather than ordinary receiving or low-power audio applications.
SPECIAL4 - Special 4-contact transmitting-tube base
Eimac medium-mu power triode for audio power amplification, modulation, RF amplification, and oscillator service. With about 300 W plate dissipation and 3 kV capability, it provides substantial linear or transmitting power through roughly 40 MHz.
Western Electric directly heated power triode designed for Class A audio amplification. Its low amplification factor and roughly 250 W plate dissipation support substantial linear service, with published single-ended output around 50 W.
Eimac medium-mu transmitting power triode for RF amplification, oscillation, and modulation. Rated around 3.5 kV and 200 W plate dissipation, its low capacitances support useful transmitter operation to roughly 150 MHz.
Western Electric water-cooled transmitting triode for very-high-power Class B RF service. Published operation reaches tens of kilowatts of RF output, making it a tube for major fixed broadcast, communications, and industrial transmitter installations.
Western Electric thoriated-tungsten air-cooled transmitting triode for RF power service. Its 125 W plate dissipation, 1.5 kV plate rating, relatively high amplification factor, and low capacitances suit medium-power transmitters through roughly 30 MHz.
Eimac 3-400Z compact high-mu zero-bias power triode for grounded-grid Class B audio and RF amplification, with oscillator capability. Its approximately 400 W plate dissipation and high amplification factor provide strong power gain through VHF frequencies.
Western Electric water-cooled transmitting triode for high-power Class B RF service. Approximately 25 kW plate dissipation and 20 kV plate capability place it in major fixed transmitter installations requiring very large radio-frequency output.
Western Electric forced-air-cooled transmitting power triode designed for high-power Class B audio service. Its 5 kW plate dissipation and 10 kV plate rating suit large audio-frequency modulator and power-amplifier stages associated with transmitters.
Western Electric directly heated water-cooled transmitting triode for very-high-power RF service. Approximately 25 kW plate dissipation and 20 kV plate capability make it suitable for major communications and broadcast transmitter installations.
Western Electric directly heated water-cooled transmitting triode for high-power RF service. With roughly 10 kW plate dissipation and plate ratings to 18 kV, it supports substantial continuous radio-frequency output in large transmitters.
Western Electric directly heated forced-air-cooled transmitting triode for high-power RF service. It combines an 18 kV plate capability with approximately 5 kW plate dissipation, providing a forced-air-cooled alternative for large transmitter stages.
5 pins - SPECIAL5 - Special 5-pin transmitting-tube base
Eimac 3-500Z compact high-mu power triode for zero-bias Class AB2 audio and RF linear amplification as well as RF power service. Its roughly 500 W plate dissipation and high amplification factor suit high-power linear amplifier stages.
Western Electric water-cooled transmitting triode for high-power modulation, amplification, and oscillator service. Its approximately 22.5 kW plate dissipation and 12.5 kV plate rating provide enormous audio or RF power for major transmitter installations.
Western Electric directly heated air-cooled transmitting triode for high-power Class C RF service. Roughly 400 W plate dissipation and 4 kV plate capability support substantial communications and broadcast transmitter output stages.
Machlett air-cooled thoriated-tungsten transmitting triode for modulator, amplifier, and oscillator service. Its approximately 750 W plate dissipation and 2.5 kV plate rating support substantial RF output and high-power audio modulation.
Standard Valves 3C/150-A directly heated thoriated-tungsten RF power triode for broadcast transmitters and modulators, rated 2500 V anode, 150 W dissipation and 10 V 3.4 A filament.
4 pins - GIANT4BAYONET - Giant 4-contact bayonet base
Industrial power triode intended for substantial radio-frequency power service. Manufacturer documentation places it in transmitting-class operation, with ratings and operating data centered on high-power RF amplification.
