C21HM
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BrandBrimar
ClassCathode Ray Tube
BaseDuodecal
Filament6.3V @ 600mA
Construction
Primary TypeOther / special
EnvelopeRectangular
SectionsSingle
Filament / Heater
Heater Notes0.6 amp nominal
Absolute Maximum Ratings
Plate Voltage18000 V
Grid 2 Voltage500 V
Grid 1 Voltage-2 V
Cathode Current0.25 mA
H-C Voltage180 V
Audio Performance
Key Features
- Aluminized Screen
- External Conductive Coating
- Wide Angle Deflection
- Replacement Type
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical Operation | 16000V | - | - | - | 0.15mA |
Application Notes
No harmful X-ray radiation is produced by this tube when operated at final anode voltages not greater than 16 kV. Heater negative with respect to cathode rating of 410V only during warm-up period of 15 secs maximum.
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