Tube-number record
SC-3557
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BrandSYLVANIA
ClassCathode Ray Tube
BaseCRT / special base
Filament6.3 V @ — mA
Construction
Primary TypeDisplay / CRT
EnvelopeGlass
SectionsSingle
Filament / Heater
Heater NotesLow Voltage Electrostatic Focus
Absolute Maximum Ratings
Plate Voltage17500 V
Grid 2 Voltage770 V
Grid 1 Voltage-150 V
Audio Performance
Key Features
- Ultra compact
- Magnetically deflected
- Electrostatically focused
- Aluminized screen
- Modified P20 phosphor
- Gray non-browning face plate
- Small .840 inch neck diameter
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical Operating Conditions | 15000 V | — | — | — | — |
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