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
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical Operation 1 | 250V | - | - | - | - |
| Typical Operation 2 | 250V | - | - | - | - |
| Typical Operation 3 | 250V | - | - | - | - |
| Typical Operation 4 | 200V | 2700 | - | - | - |
| Typical Operation 5 | 200V | - | - | - |
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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