Tube-number record
SC-4009
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BrandSylvania
ClassCathode Ray Tube
BaseCRT base (B12 family)
Filament6.3 V @ 600 mA
Construction
Primary TypeDisplay / CRT
EnvelopeRectangular clear faceplate
Base MaterialMedium Shell Diheptal
SectionsSingle gun
Filament / Heater
Heater Notes6.3 Volts, 0.6 Amperes (+/- 10%)
Absolute Maximum Ratings
Plate Voltage4400 V
Plate Dissipation6 W
Grid 1 Voltage-220 V
H-C Voltage200 V
Audio Performance
Key Features
- Electrostatically focused
- Electrostatically deflected
- Rectangular faceplate
- Pattern linearity
- Clear faceplate
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical Operation | 2500 V | — | — | — | 0.4 mA |
Application Notes
Designed for modern oscilloscopes featuring a rectangular display. The electron gun offers high deflection and pattern linearity. Maximum product of Anode No. 2 voltage and average current should be limited to 6.0 watts.
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