Tube-number record
922
0 archive entries
922 is a tube type in the TubeDatabase archive (class: High-Vacuum Phototube). Recorded specifications: brand RCA, year 1956, construction High-vacuum phototube, socket Cartridge, and maximum plate voltage 500 V. The archive does not yet hold a photographed example of this type.
BrandRCA
ClassHigh-Vacuum Phototube
BaseCartridge
Construction
Primary TypeHigh-vacuum phototube
EnvelopeLime glass
Filament / Heater
Absolute Maximum Ratings
Plate Voltage500 V
Cathode Current0.03 mA
Audio Performance
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| At 250 Volts on Anode | 250 V | — | 1000000 | — | 0.005 mA |
Application Notes
For relay applications. Dark current at 25°C is 0.005 µA.
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