Power - Tetrode (NOT beam) vacuum tubes

Tetrode

Quick-heating Mullard VHF power tetrode for intermittent mobile transmitters, producing useful output to approximately 175 MHz.

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IO

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1

Tetrode

Raytheon gas-filled power tetrode for low-voltage RF oscillator and amplifier service.

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6.3 V

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1

Tetrode

Siemens directly heated transmitting tetrode with a heavy five-volt filament. Available manufacturer material supports substantial RF power service.

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5 V

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1

Tetrode

Radiation-cooled transmitting tetrode for communications, electromedical equipment, and industrial high-frequency generators. Its heavy filament supports substantial RF power.

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5 V

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1

Tetrode

Forced-air-cooled Siemens metal-ceramic tetrode particularly suited to high-power television transmitters.

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6.3 V

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1

Tetrode

Siemens UHF transmitting tetrode with 10 kW plate dissipation for television broadcast service around 600–790 MHz.

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6.3 V

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1

Tetrode

Water-cooled coaxial tetrode for approximately 10 kW-class single-sideband communications transmitters to 110 MHz.

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10 V

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1

Tetrode

Forced-air-cooled coaxial tetrode for approximately 10 kW-class SSB communications transmitters to 110 MHz.

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10 V

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1

Tetrode

Radiation-cooled one-kilowatt transmitting tetrode for RF power service. Its heavy filament and substantial dissipation suit professional transmitters.

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10 V

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1

Tetrode

Radiation-cooled 300-watt transmitting tetrode for radio-frequency power generation and amplification in professional communications equipment.

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5 V

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Tetrode

Radiation-cooled transmitting tetrode for radio-frequency power service. Its heavy filament supports substantial professional transmitter output.

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10 V

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1

Tetrode

Transmitting power tetrode designed for RF amplification, communications, industrial RF generation, oscillation, modulation, or frequency multiplication.

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10 V

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1

Tetrode

Transmitting power tetrode designed for RF amplification, communications, industrial RF generation, oscillation, modulation, or frequency multiplication.

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10 V

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1

Tetrode-Tetrode

Transmitting power tetrode designed for RF amplification, communications, industrial RF generation, oscillation, modulation, or frequency multiplication.

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12.6 V

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2

Tetrode-Tetrode

Transmitting power tetrode designed for RF amplification, communications, industrial RF generation, oscillation, modulation, or frequency multiplication.

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12.6 V

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2

Tetrode

Transmitting power tetrode designed for RF amplification, communications, industrial RF generation, oscillation, modulation, or frequency multiplication.

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27 V

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1

Tetrode

Transmitting power tetrode designed for RF amplification, communications, industrial RF generation, oscillation, modulation, or frequency multiplication.

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6.3 V

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1

Tetrode

Transmitting power tetrode designed for RF amplification, communications, industrial RF generation, oscillation, modulation, or frequency multiplication.

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Tetrode

Thomson-CSF transmitting tetrode designed especially for high-power radio-frequency amplifier service. Its construction supports substantial professional RF output in transmitter equipment.

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Tetrode

Coaxial transmitting tetrode usable as a continuous-wave oscillator or grounded-grid RF power amplifier, particularly suited to broadband television transmitter service.

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Tetrode

Coaxial transmitting tetrode designed for continuous-wave oscillator or grounded-grid RF power-amplifier service, with particular application to broadband television transmitters.

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6.3 V

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1

Tetrode

High-power ceramic-metal Hypervapotron tetrode for low-frequency or RF oscillator and amplifier service to approximately 30 MHz, using vapor-cooled anode operation.

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Tetrode

Vapor-cooled ceramic-metal tetrode designed for high-power linear amplifier service to approximately 1 GHz. Its cooling and UHF construction support substantial broadband RF output.

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5 V

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1

Tetrode-Tetrode

Dual common-cathode RF tetrode for UHF power amplification and multiplication service. Marconi data supports push-pull Class C operation into the several-hundred-megahertz region, including frequency-tripler use in professional communications transmitters.

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12.6 V

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2

Tetrode-Triode

Combination high-gain triode and power-output tetrode for audio-frequency equipment. The triode supplies voltage amplification while the larger tetrode section provides roughly 4 W Class A loudspeaker output, integrating successive audio stages in one envelope.

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Y8A

Heater

62 V

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2

Tetrode-Tetrode

Audio amplifier combination tube containing a small-signal tetrode and a substantially larger output tetrode. It was intended to combine voltage amplification and loudspeaker power output, with the power section rated around 9 W plate dissipation.

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62 V

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2

Tetrode

Quick-heating metal-ceramic power tetrode designed for portable and mobile transmitter service, combining rapid warm-up with RF power capability for communications equipment.

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2.5 V

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1

Tetrode

Quick-heating directly heated double tetrode for mobile UHF transmitting equipment. Designed for rapid push-to-talk readiness, it serves RF output and frequency-multiplier stages and remains useful at frequencies approaching 500 MHz.

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16 V

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1

Tetrode

Quick-heating double tetrode for mobile VHF/UHF transmitters, usable as an RF power amplifier or frequency multiplier. Its paired sections deliver useful transmitter power into the several-hundred-megahertz region while minimizing warm-up delay in intermittent service.

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Tetrode

Compact forced-air-cooled metal-ceramic planar tetrode for commercial communications transmitters. Low grid-to-plate capacitance enables linear RF amplification to roughly 2 GHz, while published single-sideband conditions demonstrate useful transmitter output from the small structure.

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6.3 V

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Tetrode-Tetrode

Radiation-cooled VHF double tetrode for RF amplification, oscillation, multiplication, and modulation. The paired power sections support push-pull Class C operation around 175 MHz, with published output reaching roughly 180 W under intermittent service conditions.

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SEPTAR7

Heater

12.6 V

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2

Tetrode-Tetrode

Matched dual power tetrode developed for linear single-sideband RF amplification. Two equivalent sections, low grid-to-plate feedback capacitance, and configurable heater connections make it suitable for balanced professional communications transmitter stages.

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SEPTAR7

Heater

12.6 V

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2

Tetrode-Tetrode

Higher-heater-voltage member of the YL1070 family, retaining two matched tetrode sections for linear single-sideband RF amplification. Low feedback capacitance and dual-section construction suit balanced, heat-sink-cooled professional communications transmitter service.

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26.5 V

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2

Tetrode-Tetrode

Quick-heating internally neutralized double tetrode for mobile Class C transmitters. Designed for push-to-talk operation, it reaches useful emission rapidly and provides RF output around 200 MHz from a compact paired-section structure.

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B9A

Heater

16 V

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2

Tetrode-Tetrode

Quick-heating double tetrode for mobile RF power amplification and frequency multiplication. Published Class C operation provides useful output at 200 MHz and continues to about 500 MHz, including frequency-tripler service at the upper end.

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Tetrode-Tetrode

VHF double tetrode containing two identical RF power sections for mobile Class C amplification, oscillation, and frequency multiplication. The paired structure permits balanced or combined transmitter operation while retaining compact size and moderate plate dissipation.

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Tetrode

Planar power tetrode for grounded-grid RF amplification and oscillator service at microwave frequencies. Very high transconductance, low-feedback geometry, and roughly 140 W plate dissipation permit high-gain power operation around 3 GHz and beyond.

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6.3 V

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Tetrode

Compact transmitting tetrode for grid- or plate/screen-pulsed L-band RF amplification with useful output to approximately 1.5 GHz.

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6.3 V

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Tetrode

High-power transmitting tetrode with indirectly heated thoriated-tungsten cathode for VHF/UHF RF amplification and oscillator service.

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