Tube-number record
C21HM
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C21HM is a tube type in the TubeDatabase archive (class: Cathode Ray Tube). Recorded specifications: brand Brimar, construction Other / special, socket Duodecal, and maximum plate voltage 18000 V. The archive does not yet hold a photographed example of this type.
BrandBrimar
ClassCathode Ray Tube
BaseDuodecal
Filament6.3 V @ 600 mA
Construction
Primary TypeOther / special
EnvelopeRectangular
SectionsSingle
Filament / Heater
Heater Notes0.6 amp nominal
Absolute Maximum Ratings
Plate Voltage18000 V
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical Operation | 16000 V | — | — | — | 0.15 mA |
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.
Datasheets
Datasheet: C21HM.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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