21DMP4
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BrandNational Video Corporation
ClassTelevision Picture Tube
BaseB7-183
Filament6.3V @ 600mA
Construction
Primary TypeMonochrome CRT
EnvelopeJ171G1
Base MaterialPlastic
Sections1
Filament / Heater
Heater Notes0.6 Amperes +/- 5%
Absolute Maximum Ratings
Plate Voltage20000 V
Grid 2 Voltage500 V
Grid 1 Voltage-140 V
H-C Voltage180 V
Audio Performance
Key Features
- Electrostatic focus
- 110° magnetic deflection
- Aluminized screen
- Gray filter glass faceplate
- No ion trap required
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Direct View Television | 16000V | - | - | - | 0.1mA |
Application Notes
X-ray radiation shielding may be necessary for operation at voltages higher than 16,000 volts. Focus voltage varies between -50V to +350V under typical conditions.
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