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VMP4G

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BrandMarconi
ClassVariable Mu H.F. Pentode
Base7-pin
Filament4V @ 1mA

Construction

Primary TypePentode
EnvelopeMetallised

Filament / Heater

Absolute Maximum Ratings

Plate Voltage250 V
Grid 2 Voltage100 V

Audio Performance

Key Features
  • Variable Mu
  • Low leakage capacity
  • High slope

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Typical Operation 1250V----
Typical Operation 2250V----
Typical Operation 3250V----
Typical Operation 4200V2700---
Typical Operation 5200V----
Typical Operation 6200V----

Application Notes

Suitable for H.F. and I.F. amplification. Grid base is normally 25 volts but can be extended by using a series feed to the screen.

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