Tube-number record
MPT4
0 archive entries
MPT4 is a tube type in the TubeDatabase archive (class: Pentode). Recorded specifications: brand Marconi, construction Pentode, maximum plate voltage 250 V, and maximum plate dissipation 8 W. The archive does not yet hold a photographed example of this type.
BrandMarconi
ClassPentode
Filament4 V @ 1000 mA
Construction
Primary TypePentode
EnvelopeGlass
SectionsSingle
Filament / Heater
Heater NotesIndirectly heated
Absolute Maximum Ratings
Plate Voltage250 V
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A | 250 V | 4000 | — | 100 | 32 mA |
Application Notes
Ideal output valve for three or four valve receivers having only one low frequency stage; operates moving coil or medium impedance moving iron speakers equally well.
Datasheets
Datasheet: MPT4.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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