Tube-number record
905-A
0 archive entries
905-A is a tube type in the TubeDatabase archive (class: Cathode-Ray Tube). Recorded specifications: brand RCA, year 1945, construction Display / CRT, base Micanol, socket 5-pin, and maximum plate voltage 2200 V. The archive does not yet hold a photographed example of this type.
BrandRCA
ClassCathode-Ray Tube
Base5-pin
Filament2.5 V @ 2100 mA
Construction
Primary TypeDisplay / CRT
EnvelopeGlass
Base MaterialMicanol
Sections1
Filament / Heater
Heater Notesac or dc
Absolute Maximum Ratings
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical Operation 1 | 1500 V | — | — | — | — |
| Typical Operation 2 | 2000 V | — | — | — | — |
Application Notes
Brilliance and definition decrease with decreasing Anode No. 2 voltage. Anode No. 2 should not be less than 1500V. Grid No. 1 voltage should be near cutoff before application of anode voltages.
0 results