Tube-number record
25PA91
0 archive entries
25PA91 is a tube type in the TubeDatabase archive (class: Phototube). Recorded specifications: brand TESLA, construction Other / special, base Bakelite, socket Flexible / flying leads, and maximum plate voltage 100 V. The archive does not yet hold a photographed example of this type.
BrandTESLA
ClassPhototube
BaseFlexible / flying leads
Construction
Primary TypeOther / special
EnvelopeMiniature
Base MaterialBakelite
SectionsSingle
Filament / Heater
Absolute Maximum Ratings
Plate Voltage100 V
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Standard operation | 100 V | — | — | — | 0.0015 mA |
Application Notes
Specifically designed for photoelectric measurements and sound adapters in film projectors.
Datasheets
Datasheet: 25PA91.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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