Tube-number record
C21AA
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BrandBRIMAR
ClassTeletube
BaseCRT base (B8H)
Filament6.3 V @ 300 mA
Construction
Primary TypeOther / special
EnvelopeRectangular grey glass faceplate
Base MaterialGlass
Sections1
Filament / Heater
Heater NotesHeater current 0.3A normalized to 300mA
Absolute Maximum Ratings
Plate Voltage17600 V
Grid 2 Voltage500 V
Grid 1 Voltage2 V
H-C Voltage200 V
Audio Performance
Key Features
- Electrostatic focus
- Aluminised screen
- External conductive coating
- 110° deflection angle
- Grey glass faceplate (70% transmission)
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Standard | 16000 V | — | — | — | 0.15 mA |
Application Notes
No harmful X-ray radiation is produced by this tube when operated at final anode voltages below 16 kV. Above 16 kV, some shielding may be necessary. Shift magnets should be mounted immediately behind the scanning coils.
Datasheets
Datasheet: C21AA.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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