Tube-number record
SC-3890
0 archive entries
SC-3890 is a tube type in the TubeDatabase archive (class: Cathode Ray Tube). Recorded specifications: brand Sylvania, construction Display / CRT, base B5-57, socket Duodecal, maximum plate voltage 25000 V, and maximum plate dissipation 6 W. The archive does not yet hold a photographed example of this type.
BrandSylvania
ClassCathode Ray Tube
BaseDuodecal
Filament6.3 V @ 600 mA
Construction
Primary TypeDisplay / CRT
Envelope10-inch Glass
Base MaterialB5-57
SectionsSingle
Filament / Heater
Heater NotesHeater current 0.6A ± 10%
Absolute Maximum Ratings
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical Operating Conditions | 20000 V | — | — | — | — |
Application Notes
Designed for high resolution photographic recording. Effective resistance of anode supply should limit anode input power to 6 watts. Minimum beam current densities should be employed to prevent burning.
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