Tube-number record
SC-3397
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BrandSYLVANIA
ClassRadar Indicator Tube
BaseCRT base (B12 family)
Filament6.3 V @ 1200 mA
Construction
Primary TypeDisplay / CRT
EnvelopeRound Glass
Base MaterialMedium Shell Diheptal
Sections2 Independent Guns
Filament / Heater
Heater Notes1.2 Amperes nominal
Absolute Maximum Ratings
Plate Voltage6600 V
Plate Dissipation6 W
Grid 2 Voltage2860 V
Grid 1 Voltage-220 V
H-C Voltage200 V
Audio Performance
Key Features
- 4.5 inch round face
- Direct Viewed
- Electrostatic focusing
- Electrostatic deflection
- MIL-E-1 Construction
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Each Gun Typical | 4000 V | — | — | — | — |
Application Notes
The product of the Anode No. 2 Voltage and the Average Anode No. 2 Current should be limited to 6 watts. All edges of a raster pattern adjusted so its widest points just touch the sides of a 3.075 inch square will fall within the area bounded by the 3.075 inch square and an inscribed 2.925 inch square.
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