Tube-number record
20PA91
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BrandTesla
ClassPhototube
BaseFlexible / flying leads
Construction
Primary TypeOther / special
EnvelopeMiniature
Base MaterialBakelite
Filament / Heater
Absolute Maximum Ratings
Plate Voltage500 V
Cathode Current0.003 mA
Audio Performance
Key Features
- No lag (pracuje bez setrvacnosti)
- Sensitive to visible and infrared radiation
- Vacuum type
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Standard | 100 V | — | — | — | 0.015 mA |
Application Notes
Suitable for various photoelectric measurements and devices working with visible and infrared sources.
Datasheets
Datasheet: 20PA91.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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