Tube-number record
21CQP4
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BrandSylvania
ClassTelevision Picture Tube
BaseCRT base (B7 family)
Filament6.3 V @ 600 mA
Construction
Primary TypeOther / special
EnvelopeGlass
Sections1
Filament / Heater
Warm-up Time11s
Heater NotesHeater current: 0.6 +/- 5% Ampere
Absolute Maximum Ratings
Plate Voltage19800 V
Grid 2 Voltage550 V
Grid 1 Voltage-154 V
H-C Voltage200 V
Audio Performance
Key Features
- Electrostatic Focus
- 110° Magnetic Deflection
- Aluminized Screen
- Gray Filter Glass
- No Ion Trap
- External Conductive Coating
- Lightweight Tube
- Spherical Faceplate
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical Operation | 16000 V | — | — | — | — |
Application Notes
X-ray radiation shielding may be necessary if operated at higher than 16,000V. Visual extinction of focused raster is used for cutoff.
Datasheets
Datasheet: 21CQP4.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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