Tube-number record
B 438
0 archive entries
B 438 is a tube type in the TubeDatabase archive (class: Triode). Recorded specifications: brand Philips Miniwatt and construction Triode. The archive does not yet hold a photographed example of this type.
BrandPhilips Miniwatt
ClassTriode
Filament4 V @ 100 mA
Construction
Primary TypeTriode
SectionsSingle Triode
Filament / Heater
Absolute Maximum Ratings
Audio Performance
Key Features
- Filament current range code B (0.10 to 0.20 A)
- Standard European 4-volt heater series
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical Operation | — | — | — | 38 | — |
Datasheets
Datasheet: B438.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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