Tube-number record
902-A
0 archive entries
902-A is a tube type in the TubeDatabase archive (class: High-Vacuum Cathode-Ray Tube). Recorded specifications: brand RCA, year 1945, construction Display / CRT, base Medium Shell, socket Octal, and maximum plate voltage 660 V. The archive does not yet hold a photographed example of this type.
BrandRCA
ClassHigh-Vacuum Cathode-Ray Tube
BaseOctal
Filament6.3 V @ 600 mA
Construction
Primary TypeDisplay / CRT
EnvelopeGlass
Base MaterialMedium Shell
Sections1
Filament / Heater
Heater NotesUnipotential Cathode
Absolute Maximum Ratings
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| 400V Operation | 400 V | — | — | — | — |
| 600V Operation | 600 V | — | — | — | — |
Application Notes
To avoid damage, grid-No.1 voltage should be near cutoff before application of anode voltages.
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