Directly heated receiving power triode for audio-frequency output service, with Class A operation to about 1.6 W single-ended and published push-pull Class B operation reaching roughly 25 W from a pair.
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.
High-mu transmitting power triode for Class C RF amplification or oscillation and Class B audio/modulator service. Rated for 100 W plate dissipation, operation to about 40 MHz, and several hundred watts output under published conditions.
Low-mu Eimac transmitting power triode intended for RF amplifier, oscillator, and modulator service. Its published operating data cover substantial Class C RF output and audio/modulator operation at plate voltages up to several kilovolts.
Duodecar combination tube for television receivers, integrating a beam-power audio output section with a dual-control pentode used for FM detection and signal processing.
Miniature audio-output power pentode electrically equivalent to 6BQ5/EL84 except for heater rating. Designed for the output stage of audio-frequency amplifiers, it provides substantial power from compact nine-pin construction.
Power pentode designed for vertical-deflection amplifier service in color and black-and-white television receivers. Its output capability is intended to drive the vertical scanning system rather than ordinary small-signal amplification.
Dissimilar dual triode developed for television vertical deflection, combining a medium-mu oscillator section with a low-mu, high-dissipation output amplifier capable of substantial pulse operation.
Dissimilar dual triode for television vertical deflection, pairing an oscillator triode with a low-resistance power section rated for high positive plate pulses in vertical-output service.
Dissimilar dual triode for television vertical deflection, combining a high-mu oscillator section with a low-mu, high-current output triode designed for pulsed vertical-amplifier operation.
Dissimilar television vertical-deflection dual triode combining an oscillator section with a low-mu, high-transconductance output amplifier rated for 10 W plate dissipation and high pulse voltage.
Dissimilar dual triode combining a high-mu voltage-amplifier section with a low-mu 10 W power section, suited to circuits requiring voltage gain followed by substantial current drive.
Dissimilar dual triode for television vertical deflection, combining an oscillator section with a low-mu, high-transconductance 10 W output amplifier designed for high pulse voltages.
Dissimilar dual triode specifically intended for television vertical-deflection oscillator and amplifier service, combining a high-gain section with a low-mu, high-dissipation output section.
Dissimilar dual triode combining a high-mu voltage-amplifier section with a low-mu 10 W power section, derived from the GF7 family for demanding driver and output applications.
Miniature output pentode used in audio amplifier output stages and television video-output stages. Its power-capable construction supports both audio load drive and comparatively high-current wideband video service.
Miniature triode-pentode for television receivers. The triode serves sync-separator, sync-clipper, phase-inverter, or sound-IF functions, while the pentode provides video-output amplification.
Miniature triode-pentode for television sync-amplifier and video-output applications. It is electrically equivalent to related ECL85-family types except for heater rating, combining small-signal control and output functions.
Beam-power output tube designed for audio-frequency power amplification in television receivers, with series-string heater characteristics suited to transformerless consumer equipment.
Combination receiving tube incorporating a beam-power audio output section with an additional small-signal section for television or radio receiver circuitry.
Russian output pentode designed for low-frequency power amplification in long-distance wire-communication equipment. Manufacturer documentation identifies audio-frequency power delivery as its primary function.
Output pentode designed for audio power stages in AC/DC mains-powered equipment. Its heater and output characteristics suit transformerless receivers requiring a dedicated low-frequency power amplifier.
Beam-power output valve intended for audio-frequency power amplification in television and radio receivers, using a heater suited to series-connected receiver supplies.
Compact beam-power output tube for receiver audio stages, providing useful Class-A output power from a heater arrangement intended for series-string equipment.
Beam-power receiving tube intended primarily for audio-frequency output service in television or radio equipment using series-connected heater supplies.
Radiation-cooled Amperex transmitting triode for RF power amplification and oscillation, with Class B audio-amplifier or modulator service also specified. Rated for 75 W plate dissipation and operation to approximately 30 MHz.
Combination tube with a high-voltage heater for line-operated equipment, integrating rectifier and beam-power audio-output functions in a single envelope.
117 V line-operated combination tube containing a rectifier and beam-power audio output section, intended for transformerless radio and related consumer equipment.
Line-operated multi-section tube combining rectification with beam-power audio amplification, using a high-voltage heater suitable for direct or series supply operation.
117 V combination tube containing a half-wave rectifier and beam-power amplifier, intended for transformerless equipment with the power section providing Class-A audio output.
Brimar combination tube containing a rectifier section and a power tetrode, using a 117 V series heater. It integrates rectification and output amplification in one envelope for compact mains-powered equipment.
Miniature dual-pentode television tube combining a high-current video-output section with a lower-power section for sound IF, AGC, or sync-separator service, integrating multiple television signal functions in one envelope.
Miniature triode-pentode used for television vertical-deflection oscillator/amplifier service and AF voltage/power amplification. It combines a small-signal triode with a power pentode in one envelope.
Dissimilar dual triode combining a high-mu voltage section with a low-resistance power triode capable of substantial pulse voltage, characteristic of television vertical-deflection circuitry.
Dual low-mu power triode designed for booster-scanning circuits and series-regulator service in DC power supplies. Its sections withstand severe pulse conditions, including kilovolt-level inverse and control-grid pulse voltages.
Miniature beam-power output tube intended for Class-A audio-frequency output stages in television and radio receivers, delivering several watts from a compact receiving-tube envelope.
Indirectly heated double high-frequency tetrode, internally neutralized for push-pull amplification to approximately 225 MHz. Two tetrode sections provide balanced RF power amplification in one envelope.
Internally neutralized double high-frequency tetrode designed for push-pull amplification or frequency-tripler service to approximately 500 MHz. Two RF tetrode sections share one envelope.
Internally neutralized double high-frequency tetrode with center-tapped heater, designed for push-pull amplification or frequency-tripler service to approximately 600 MHz.
Specialized beam-power valve for high-voltage pulse and modulation service, featuring low interelectrode capacitance and kilovolt-class series-modulation standoff rather than ordinary receiver output duty.
Industrial beam-power modulator valve designed for series and break-modulator pulse service, with kilovolt quiescent operation and peak anode-voltage capability exceeding 12 kV.
Dissimilar dual triode, electrically equivalent to 6FY7/15FY7 apart from heater characteristics, combining a high-mu section with a low-mu, pulse-capable power output section.
Miniature triode-pentode for television voltage amplification, sync separation, sound IF, and video output. Its pentode section uses frame-grid construction for high-transconductance wideband output service.
Miniature triode-pentode for television receivers. The triode serves sync-separator or sound-IF functions while the pentode provides video-output amplification, combining control and output stages in one tube.
Multi-section receiving tube combining a beam-power audio-output stage with an additional small-signal section for television or radio receiver functions.
Special-purpose beam-power tube intended for professional or industrial electronic service, with construction and ratings beyond ordinary consumer receiver output applications.
Indirectly heated triode for general electronic service. Available source material confirms triode construction without establishing a narrower functional application confidently.
Directly heated receiving power triode for audio-frequency output service, with Class A operation to about 1.6 W single-ended and published push-pull Class B operation reaching roughly 25 W from a pair.
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.
High-mu transmitting power triode for Class C RF amplification or oscillation and Class B audio/modulator service. Rated for 100 W plate dissipation, operation to about 40 MHz, and several hundred watts output under published conditions.
Low-mu Eimac transmitting power triode intended for RF amplifier, oscillator, and modulator service. Its published operating data cover substantial Class C RF output and audio/modulator operation at plate voltages up to several kilovolts.
Duodecar combination tube for television receivers, integrating a beam-power audio output section with a dual-control pentode used for FM detection and signal processing.
Miniature audio-output power pentode electrically equivalent to 6BQ5/EL84 except for heater rating. Designed for the output stage of audio-frequency amplifiers, it provides substantial power from compact nine-pin construction.
Power pentode designed for vertical-deflection amplifier service in color and black-and-white television receivers. Its output capability is intended to drive the vertical scanning system rather than ordinary small-signal amplification.
Dissimilar dual triode developed for television vertical deflection, combining a medium-mu oscillator section with a low-mu, high-dissipation output amplifier capable of substantial pulse operation.
Dissimilar dual triode for television vertical deflection, pairing an oscillator triode with a low-resistance power section rated for high positive plate pulses in vertical-output service.
Dissimilar dual triode for television vertical deflection, combining a high-mu oscillator section with a low-mu, high-current output triode designed for pulsed vertical-amplifier operation.
Dissimilar television vertical-deflection dual triode combining an oscillator section with a low-mu, high-transconductance output amplifier rated for 10 W plate dissipation and high pulse voltage.
Dissimilar dual triode combining a high-mu voltage-amplifier section with a low-mu 10 W power section, suited to circuits requiring voltage gain followed by substantial current drive.
Dissimilar dual triode for television vertical deflection, combining an oscillator section with a low-mu, high-transconductance 10 W output amplifier designed for high pulse voltages.
Dissimilar dual triode specifically intended for television vertical-deflection oscillator and amplifier service, combining a high-gain section with a low-mu, high-dissipation output section.
Dissimilar dual triode combining a high-mu voltage-amplifier section with a low-mu 10 W power section, derived from the GF7 family for demanding driver and output applications.
Miniature output pentode used in audio amplifier output stages and television video-output stages. Its power-capable construction supports both audio load drive and comparatively high-current wideband video service.
Miniature triode-pentode for television receivers. The triode serves sync-separator, sync-clipper, phase-inverter, or sound-IF functions, while the pentode provides video-output amplification.
Miniature triode-pentode for television sync-amplifier and video-output applications. It is electrically equivalent to related ECL85-family types except for heater rating, combining small-signal control and output functions.
Beam-power output tube designed for audio-frequency power amplification in television receivers, with series-string heater characteristics suited to transformerless consumer equipment.
Combination receiving tube incorporating a beam-power audio output section with an additional small-signal section for television or radio receiver circuitry.
Russian output pentode designed for low-frequency power amplification in long-distance wire-communication equipment. Manufacturer documentation identifies audio-frequency power delivery as its primary function.
Output pentode designed for audio power stages in AC/DC mains-powered equipment. Its heater and output characteristics suit transformerless receivers requiring a dedicated low-frequency power amplifier.
Beam-power output valve intended for audio-frequency power amplification in television and radio receivers, using a heater suited to series-connected receiver supplies.
Compact beam-power output tube for receiver audio stages, providing useful Class-A output power from a heater arrangement intended for series-string equipment.
Beam-power receiving tube intended primarily for audio-frequency output service in television or radio equipment using series-connected heater supplies.
Radiation-cooled Amperex transmitting triode for RF power amplification and oscillation, with Class B audio-amplifier or modulator service also specified. Rated for 75 W plate dissipation and operation to approximately 30 MHz.
Combination tube with a high-voltage heater for line-operated equipment, integrating rectifier and beam-power audio-output functions in a single envelope.
117 V line-operated combination tube containing a rectifier and beam-power audio output section, intended for transformerless radio and related consumer equipment.
Line-operated multi-section tube combining rectification with beam-power audio amplification, using a high-voltage heater suitable for direct or series supply operation.
117 V combination tube containing a half-wave rectifier and beam-power amplifier, intended for transformerless equipment with the power section providing Class-A audio output.
Brimar combination tube containing a rectifier section and a power tetrode, using a 117 V series heater. It integrates rectification and output amplification in one envelope for compact mains-powered equipment.
Miniature dual-pentode television tube combining a high-current video-output section with a lower-power section for sound IF, AGC, or sync-separator service, integrating multiple television signal functions in one envelope.
Miniature triode-pentode used for television vertical-deflection oscillator/amplifier service and AF voltage/power amplification. It combines a small-signal triode with a power pentode in one envelope.
Dissimilar dual triode combining a high-mu voltage section with a low-resistance power triode capable of substantial pulse voltage, characteristic of television vertical-deflection circuitry.
Dual low-mu power triode designed for booster-scanning circuits and series-regulator service in DC power supplies. Its sections withstand severe pulse conditions, including kilovolt-level inverse and control-grid pulse voltages.
Miniature beam-power output tube intended for Class-A audio-frequency output stages in television and radio receivers, delivering several watts from a compact receiving-tube envelope.
Indirectly heated double high-frequency tetrode, internally neutralized for push-pull amplification to approximately 225 MHz. Two tetrode sections provide balanced RF power amplification in one envelope.
Internally neutralized double high-frequency tetrode designed for push-pull amplification or frequency-tripler service to approximately 500 MHz. Two RF tetrode sections share one envelope.
Internally neutralized double high-frequency tetrode with center-tapped heater, designed for push-pull amplification or frequency-tripler service to approximately 600 MHz.
Specialized beam-power valve for high-voltage pulse and modulation service, featuring low interelectrode capacitance and kilovolt-class series-modulation standoff rather than ordinary receiver output duty.
Industrial beam-power modulator valve designed for series and break-modulator pulse service, with kilovolt quiescent operation and peak anode-voltage capability exceeding 12 kV.
Dissimilar dual triode, electrically equivalent to 6FY7/15FY7 apart from heater characteristics, combining a high-mu section with a low-mu, pulse-capable power output section.
Miniature triode-pentode for television voltage amplification, sync separation, sound IF, and video output. Its pentode section uses frame-grid construction for high-transconductance wideband output service.
Miniature triode-pentode for television receivers. The triode serves sync-separator or sound-IF functions while the pentode provides video-output amplification, combining control and output stages in one tube.
Multi-section receiving tube combining a beam-power audio-output stage with an additional small-signal section for television or radio receiver functions.
Special-purpose beam-power tube intended for professional or industrial electronic service, with construction and ratings beyond ordinary consumer receiver output applications.
Indirectly heated triode for general electronic service. Available source material confirms triode construction without establishing a narrower functional application confidently.
