Tube-number record
SC-3850
0 archive entries
SC-3850 is a tube type in the TubeDatabase archive (class: Cathode Ray Tube). Recorded specifications: brand Sylvania, construction Display / CRT, socket Duodecal, and maximum plate voltage 15000 V. 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
EnvelopeC40 Exp. 14
SectionsFiber Optic Faceplate
Filament / Heater
Heater Notes0.6 Ampere +/- 10%
Absolute Maximum Ratings
Plate Voltage15000 V
Grid 2 Voltage2500 V
Grid 1 Voltage-150 V
H-C Voltage165 V
Audio Performance
Key Features
- 5-inch diameter
- Fiber Optics faceplate
- Very High Resolution
- Integral encapsulated high voltage connector
- Corona protected
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Photographic Recording | 10000 V | — | — | — | 0.003 mA |
Application Notes
Designed for high resolution photographic recording using a fiber optics faceplate. External conductive coating must be grounded.
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