20PA91
0 Tubes in archive
BrandTesla
ClassPhototube
BaseWire leads
Construction
Primary TypeVacuum silver-cesium phototube
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 | 100V | - | - | - | 0.015mA |
Application Notes
Suitable for various photoelectric measurements and devices working with visible and infrared sources.
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