Voltage - Pentode High Frequency (single) vacuum tubes

Pentode

The 6ZH1PER is a long-life, high-durability Russian pentode developed for wideband high-frequency voltage amplification. It combines approximately 5.5 mA/V transconductance with rugged miniature construction and an indirectly heated cathode, serving professional radio-electronic equipment requiring dependable operation.

Base

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Socket

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Heater

6.3 V

Sections

1

Pentode

The 6ZH1PEV is an extended-life Russian miniature high-frequency pentode intended for wideband voltage amplification. With a nominal 6.3-volt heater and approximately 5.2 mA/V transconductance, it provides RF signal gain while emphasizing long service life and operational reliability.

Base

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Socket

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Heater

6.3 V

Sections

1

Pentode

The 6ZH1ZH is a Russian acorn-shaped high-frequency pentode with radial terminal connections. Intended for RF voltage amplification, it employs an indirectly heated oxide cathode and compact glass construction, operating from a 6.3-volt heater with approximately 1.6 mA/V transconductance.

Base

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Socket

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Heater

6.3 V

Sections

1

Pentode

The 6ZH20P is a Russian high-frequency pentode intended for voltage amplification in broadband electronic circuits. Its miniature indirectly heated construction and approximately 15.5 mA/V transconductance support wideband signal amplification, including applications requiring substantial RF gain.

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Socket

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Heater

6.3 V

Sections

1

Pentode

The 6ZH21P is a Russian miniature high-frequency pentode intended for wideband voltage preamplification. Its indirectly heated cathode and approximately 14.5 mA/V transconductance provide amplification in sensitive broadband input stages, with low microphonic characteristics suitable for demanding signal equipment.

Base

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Socket

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Heater

6.3 V

Sections

1

Pentode

The 6ZH22P is a high-transconductance Russian miniature pentode developed for wideband voltage preamplification. Featuring approximately 23 mA/V transconductance and a 6.3-volt heater, it provides strong RF signal gain in professional receiving and broadband amplification equipment.

Base

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Socket

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Heater

6.3 V

Sections

1

Pentode

Russian indirectly heated voltage-amplifier pentode; typical anode 150 V, 14 mA; printed transconductance 30 Ma/V.

Base

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Socket

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Heater

6.3 V

Sections

1

Pentode

Russian indirectly heated voltage-amplifier pentode; typical anode 150 V, 14 mA; printed transconductance 30 Ma/V.

Base

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Socket

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Heater

6.3 V

Sections

1

Pentode

Russian indirectly heated voltage-amplifier pentode; typical anode 120 V, 5.5 mA; printed transconductance 3.6 Ma/V.

Base

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Socket

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Heater

6.3 V

Sections

1

Pentode

Russian indirectly heated voltage-amplifier pentode; typical anode 120 V, 5.5 mA; printed transconductance 3.8 Ma/V.

Base

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Socket

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Heater

6.3 V

Sections

1

Pentode

Russian indirectly heated voltage-amplifier pentode; typical anode 120 V, 6 mA; printed transconductance 4.2 Ma/V.

Base

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Socket

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Heater

6.3 V

Sections

1

Pentode

Russian indirectly heated voltage-amplifier pentode; typical anode 120 V, 6 mA; printed transconductance 4.2 Ma/V.

Base

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Socket

Not recorded

Heater

6.3 V

Sections

1

Pentode

Russian indirectly heated voltage-amplifier pentode; typical anode 250 V, 10 mA; printed transconductance 4.9 Ma/V.

Base

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Socket

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Heater

6.3 V

Sections

1

Pentode

Russian indirectly heated voltage-amplifier pentode; typical anode 120 V, 8 mA; printed transconductance 5 Ma/V.

Base

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Socket

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Heater

6.3 V

Sections

1

Pentode

Russian indirectly heated voltage-amplifier pentode; typical anode 120 V, 6 mA; printed transconductance 6 Ma/V.

Base

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Socket

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Heater

6.3 V

Sections

1

Pentode

Russian indirectly heated voltage-amplifier pentode; typical anode 120 V, 8 mA; printed transconductance 4.5 Ma/V.

Base

Not recorded

Socket

Not recorded

Heater

6.3 V

Sections

1

Pentode

Russian indirectly heated voltage-amplifier pentode; typical anode 120 V, 8 mA; printed transconductance 4.5 Ma/V.

Base

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Socket

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Heater

6.3 V

Sections

1

Pentode

High-transconductance Russian pentode developed for high-frequency amplifier service with substantial gain and low heater demand.

Base

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Socket

B7G

Heater

6.3 V

Sections

1

Pentode

Russian indirectly heated voltage-amplifier pentode; typical anode 150 V, 11 mA; printed transconductance 10.6 Ma/V.

Base

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Socket

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Heater

6.3 V

Sections

1

Pentode

Russian indirectly heated voltage-amplifier pentode; typical anode 100 V, 26 mA; printed transconductance 29 Ma/V.

Base

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Socket

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Heater

6.3 V

Sections

1

Pentode

Russian indirectly heated voltage-amplifier pentode; typical anode 300 V, 10 mA; printed transconductance 9 Ma/V.

Base

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Socket

Not recorded

Heater

6.3 V

Sections

1

Pentode

Russian indirectly heated voltage-amplifier pentode; typical anode 150 V, 15 mA; printed transconductance 14.5 Ma/V.

Base

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Socket

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Heater

6.3 V

Sections

1

Pentode

Russian indirectly heated voltage-amplifier pentode; typical anode 50 V, 5 mA; printed transconductance 5.4 Ma/V.

Base

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Socket

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Heater

6.3 V

Sections

1

Pentode

6ZH46BV voltage - pentode high frequency (single) electronic tube specifications and datasheets.

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Socket

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Heater

6.3 V

Sections

1

Pentode

6ZH49PD voltage - pentode high frequency (single) electronic tube specifications and datasheets.

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Socket

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Heater

6.3 V

Sections

1

Pentode

6ZH4P voltage - pentode high frequency (single) electronic tube specifications and datasheets.

Base

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Socket

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Heater

6.3 V

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1

Pentode

6ZH4V voltage - pentode high frequency (single) electronic tube specifications and datasheets.

Base

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Socket

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Heater

6.3 V

Sections

1

Pentode

6ZH50P voltage - pentode high frequency (single) electronic tube specifications and datasheets.

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Socket

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Heater

6.3 V

Sections

1

Pentode

6ZH51P voltage - pentode high frequency (single) electronic tube specifications and datasheets.

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Socket

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Heater

6.3 V

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1

Pentode

6ZH52P voltage - pentode high frequency (single) electronic tube specifications and datasheets.

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Socket

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Heater

6.3 V

Sections

1

Pentode

6ZH53P voltage - pentode high frequency (single) electronic tube specifications and datasheets.

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Socket

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Heater

6.3 V

Sections

1

Pentode

6ZH5B voltage - pentode high frequency (single) electronic tube specifications and datasheets.

Base

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Socket

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Heater

6.3 V

Sections

1

Pentode

6ZH5BV voltage - pentode high frequency (single) electronic tube specifications and datasheets.

Base

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Socket

Not recorded

Heater

6.3 V

Sections

1

Pentode

6ZH5BVR voltage - pentode high frequency (single) electronic tube specifications and datasheets.

Base

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Socket

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Heater

6.3 V

Sections

1

Pentode

6ZH5P voltage - pentode high frequency (single) electronic tube specifications and datasheets.

Base

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Socket

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Heater

6.3 V

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1

Pentode

6ZH7 voltage - pentode high frequency (single) electronic tube specifications and datasheets.

Base

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Socket

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Heater

6.3 V

Sections

1

Pentode

6ZH8 voltage - pentode high frequency (single) electronic tube specifications and datasheets.

Base

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Socket

Not recorded

Heater

6.3 V

Sections

1

Pentode

6ZH9G voltage - pentode high frequency (single) electronic tube specifications and datasheets.

Base

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Socket

Not recorded

Heater

6.3 V

Sections

1

Pentode

6ZH9GV voltage - pentode high frequency (single) electronic tube specifications and datasheets.

Base

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Socket

Not recorded

Heater

6.3 V

Sections

1

Pentode

6ZH9PE voltage - pentode high frequency (single) electronic tube specifications and datasheets.

Base

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Socket

Not recorded

Heater

6.3 V

Sections

1

Pentode

High-frequency pentode using a 6.3 V, 175 mA heater. Manufacturer documentation identifies it for RF signal-amplifier service, with no explicit evidence in the available source for a narrower cutoff or specialized functional category.

Base

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Socket

B7G

Heater

6.3 V

Sections

1

Pentode

High-frequency pentode electrically identical to the 713A except for its published base construction. It retains the same RF signal-amplifier function while differing mechanically in its base arrangement.

Base

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Socket

IO

Heater

6.3 V

Sections

1

Pentode

Brimar English-base RF pentode for high-frequency signal amplification. Manufacturer data specify a 4 V heater, 200 V plate operating point, and 4.0 mA/V transconductance for receiver-type RF service.

Base

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Socket

M7A

Heater

4 V

Sections

1

Pentode

Directly heated high-frequency amplifier pentode, explicitly co-designated 1B4/951 in RCA documentation. Its filamentary cathode and RF amplifier role suit low-voltage high-frequency signal equipment.

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Socket

UX4

Heater

2 V

Sections

1

Pentode

Long-life GEC RF pentode for professional applications requiring closely controlled characteristics and dependable high-frequency amplification.

Base

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Socket

B9A

Heater

6.3 V

Sections

1

Pentode

German high-transconductance pentode for professional high-frequency electronic equipment, providing substantial signal-current capability from a 4 V heater.

Base

Not recorded

Socket

POST8

Heater

4 V

Sections

1

Pentode

European high-frequency pentode for RF, IF, and audio-frequency voltage amplification, combining broad utility with very high plate resistance.

Base

P30

Socket

P8A

Heater

4 V

Sections

1

Pentode

Professional pentode with exceptionally low grid-anode capacitance, favoring stable high-frequency and wideband voltage amplification.

Base

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Socket

P8A

Heater

18 V

Sections

1