Tube-number record
W30
0 archive entries
W30 is a tube type in the TubeDatabase archive (class: Pentode). Recorded specifications: brand M.O. Valve Company Ltd, construction Pentode, socket 7-pin (non-miniature), and maximum plate voltage 250 V. The archive does not yet hold a photographed example of this type.
BrandM.O. Valve Company Ltd
ClassPentode
Base7-pin (non-miniature)
Filament13 V @ 0.3 mA
Construction
Primary TypePentode
EnvelopeCatkin (all-metal)
SectionsSingle
Filament / Heater
Heater NotesIntended for series or parallel running
Absolute Maximum Ratings
Plate Voltage250 V
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| H.F. Amplifier | 250 V | 4000 | — | — | 12 mA |
| H.F. Amplifier (Volume Controlled) | 250 V | 30 | — | — | 0.5 mA |
Application Notes
High Frequency Pentode for series or parallel running in A.C./D.C. receivers or 12-volt car radio systems. Variable-mu characteristic allows for volume control via grid bias variation.
Datasheets
Datasheet: W30.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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