Voltage Pentode - High Frequency (single) vacuum tubes

Pentode

Ediswan/Mazda pentode documented for signal amplification service. The available manufacturer sheet supplies its electrical characteristics and operating information, but does not provide sufficiently explicit functional wording here to justify a narrower specialized classification.

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22 V

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1

Pentode

Russian high-frequency voltage-amplifier pentode designed for long-distance wire communication systems. Manufacturer data specify a 1,000-hour guaranteed service life and operating characteristics for high-frequency signal amplification in communications equipment.

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Socket

IO

Heater

10 V

Sections

1

Pentode

Nine-pin miniature pentode designed for RF, IF, video-amplifier, or mixer service in television receivers. Its broad high-frequency signal role makes it a versatile television front-end and wideband amplification tube rather than a power-output device.

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Socket

B9A

Heater

12.6 V

Sections

1

Pentode

Russian high-frequency pentode with a tailored characteristic, designed for amplification of high-frequency voltage. Its manufacturer description places it firmly in RF voltage-amplifier service rather than power-output operation.

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Socket

IO

Heater

12.6 V

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1

Pentode

Russian high-frequency pentode with a short characteristic, designed for high-frequency voltage amplification. Manufacturer documentation specifies a 2,000-hour service-life guarantee and electrical characteristics for RF signal-amplifier operation.

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Socket

IO

Heater

12.6 V

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1

Pentode

High-frequency voltage-amplifier pentode designed for long-distance cable-telephone underwater equipment. Its specialized communications role emphasizes reliable RF or carrier-frequency signal amplification in submerged repeater systems.

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13.3 V

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1

Pentode

Pentode designed for underwater amplifier equipment and high-frequency voltage amplification. Manufacturer documentation identifies it as a specialized communications signal tube for submerged cable systems rather than a general-purpose or power-output pentode.

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13.3 V

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1

Pentode

Indirectly heated high-frequency pentode intended for HF amplification or detector service. Cossor documentation identifies it as a radio-frequency signal tube capable of both amplification and detection in receiving equipment.

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Socket

B7

Heater

13 V

Sections

1

Pentode

High-slope RF pentode designed for RF, IF, and wideband amplifier service. Tesla documentation identifies it as a high-frequency signal-amplification tube suited to circuits requiring substantial transconductance and broad bandwidth.

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Socket

IO

Heater

18 V

Sections

1

Pentode

Directly heated high-frequency amplifier pentode, explicitly co-designated 1B4/951 in RCA documentation. It is intended for RF signal amplification and uses a filamentary cathode suited to low-voltage supply operation.

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Heater

2 V

Sections

1

Pentode

Directly heated high-frequency RF amplifier pentode.

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Heater

2 V

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1

Pentode

Ruggedized Russian high-frequency pentode designed for voltage amplification. Its strengthened construction supports RF signal service under demanding mechanical conditions while retaining the compact form of a miniature directly heated pentode.

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Heater

1.2 V

Sections

1

Pentode

Ruggedized Russian high-frequency pentode designed for voltage amplification. Manufacturer documentation emphasizes strengthened construction for RF signal service where resistance to demanding mechanical or environmental conditions is required.

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1.2 V

Sections

1

Pentode

Shock-resistant Russian high-frequency pentode designed for voltage amplification. Its mechanically robust construction makes it suitable for RF signal equipment exposed to vibration or shock rather than ordinary stationary receiver service.

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1.35 V

Sections

1

Pentode

Russian directly heated miniature pentode for high-frequency voltage amplification in battery-operated receivers. Its oxide-coated 1.2 V, 60 mA filament supports low-voltage RF amplification with nominal transconductance of 0.89 mA/V.

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1.2 V

Sections

1

Pentode

Russian directly heated, high-durability miniature pentode for high-frequency oscillation and amplification. The 1.2 V, 125 mA oxide-coated filament and flexible leads support compact RF equipment.

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1.2 V

Sections

1

Pentode

Russian high-durability, directly heated miniature RF pentode for high-frequency oscillation and amplification. The 1P22BV uses a 1.2 V, 125 mA oxide-coated filament and flexible leads; its datasheet specifies microphonic characteristics.

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1.2 V

Sections

1

Pentode

Russian shock-resistant directly heated miniature pentode intended for high-frequency oscillation. A 1.35 V, 223 mA oxide-coated filament and flexible lead connections suit equipment exposed to mechanical stress.

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Heater

1.35 V

Sections

1

Pentode

Russian high-durability miniature pentode for HF oscillation and amplification. Uses a directly heated oxide-coated filament rated 1.2 V, 120 mA, and flexible leads.

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Heater

1.2 V

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1

Pentode

Directly heated miniature HF voltage-amplifier pentode.

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Heater

1.2 V

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1

Pentode

Directly heated miniature HF voltage-amplifier pentode.

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Heater

1.2 V

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1

Pentode

Directly heated miniature HF voltage-amplifier pentode.

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Heater

1.2 V

Sections

1

Pentode

Directly heated miniature HF oscillator/amplifier pentode; series/parallel filament.

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Heater

1.2 V

Sections

1

Pentode

Ruggedized directly heated HF pentode; series/parallel filament.

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Heater

1.2 V

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1

Pentode

Directly heated HF voltage pentode; series/parallel filament.

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Heater

1.2 V

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1

Pentode

Rugged directly heated HF voltage pentode.

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1.35 V

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1

Pentode

Rugged directly heated high-frequency amplifier pentode.

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1.2 V

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1

Pentode

Miniature directly heated high-frequency voltage amplifier pentode.

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Heater

2.2 V

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1

Pentode

Miniature directly heated high-frequency voltage amplifier pentode.

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Heater

2.2 V

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1

Pentode

Miniature directly heated high-frequency voltage amplifier pentode.

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2.2 V

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1

Pentode

2ZH48B voltage pentode - high frequency (single) electronic tube specifications and datasheets.

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2.4 V

Sections

1

Pentode

Controlled-warm-up high-transconductance pentode developed for RF and IF amplifier service in sensitive high-frequency receiver stages.

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Socket

B7G

Heater

3.4 V

Sections

1

Pentode

Western Electric miniature pentode designed for high- and ultra-high-frequency amplification, combining useful gain with compact low-capacitance construction.

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Socket

B7G

Heater

6.3 V

Sections

1

Pentode

Western Electric UHF suppressor-grid pentode with independent suppressor control for gating, modulation, mixing, and specialized high-frequency circuits.

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Socket

B7G

Heater

6.3 V

Sections

1

Pentode

Professional carrier-frequency pentode for telecommunications amplification, featuring top-cap control grid and detailed high-frequency capacitance specifications.

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Socket

UX6

Heater

7.5 V

Sections

1

Pentode

Compact acorn pentode for high- and low-frequency amplification and detector service, using low capacitances for high-frequency receiver applications.

Base

WITHOUTBASE-MV

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Heater

6.3 V

Sections

1

Pentode

High-transconductance pentode developed for high-frequency and television amplification, with published operating conditions for wideband video service.

Base

P30-VIII

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Heater

4 V

Sections

1

Pentode

Acorn pentode developed for high-frequency voltage amplification, combining compact low-capacitance construction with high plate resistance.

Base

WITHOUTBASE-MV

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Heater

6.3 V

Sections

1

Pentode

Russian indirectly heated screened RF pentode for high-frequency voltage and power amplification and oscillation up to approximately 200 MHz. Nominal heater 4.2 V, 225 mA; published transconductance 1.7 mA/V.

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4.2 V

Sections

1

Pentode

Long-life low-noise RF and broadband pentode developed for professional high-frequency amplifier service and replacement of 5654/6AK5-class types.

Base

E7-1

Socket

B7G

Heater

6.3 V

Sections

1

Pentode

Subminiature RF pentode intended for Class A signal amplification. Its compact construction suits high-frequency voltage-amplifier stages where miniature size is important, with manufacturer data providing the corresponding Class A operating characteristics.

Base

5702

Socket

SUBMINIATURE7

Heater

6.3 V

Sections

1

Pentode

RF pentode documented by Standard Valves for high-frequency signal amplification. Its manufacturer classification establishes radio-frequency amplifier service rather than power output, although the surviving description does not justify a narrower cutoff classification.

Base

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Socket

B5

Heater

4 V

Sections

1

Pentode

RF pentode documented by Standard Valves for high-frequency signal service. Manufacturer data include electrode and capacitance information, identifying it as an RF amplifier tube rather than a power-output pentode.

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Socket

M7A

Heater

10 V

Sections

1

Pentode

RF pentode documented by Standard Valves for high-frequency signal service. Published electrode and capacitance data establish its role as an RF signal-amplifier device rather than an output-stage power tube.

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Socket

M7A

Heater

10 V

Sections

1

Pentode

Low-microphony high-frequency pentode designed for signal amplification where mechanical vibration must produce minimal electrical disturbance. Its manufacturer registration emphasizes reduced microphonic response as a distinguishing characteristic for sensitive HF circuits.

Base

9BC

Socket

B9A

Heater

6.3 V

Sections

1

Pentode

High-slope wide-band RF pentode designed for broad-band high-frequency amplification. Manufacturer data identify substantial transconductance and wideband Class A service, making it suitable for demanding RF signal-amplifier stages.

Base

7EB

Socket

B7G

Heater

6.3 V

Sections

1

Pentode

Ruggedized subminiature UHF pentode designed for high-frequency signal service under demanding conditions. Its compact construction combines ultra-high-frequency capability with mechanical ruggedization for equipment requiring both small size and environmental durability.

Base

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Socket

B7G

Heater

6.3 V

Sections

1

Pentode

EMI Emitron secondary-emission pentode for wideband radio-frequency amplification. An internal secondary emitter multiplies electrons, enabling unusually high effective transconductance and gain in high-frequency amplifier stages.

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Heater

6.3 V

Sections

1