21EMP4
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BrandWestinghouse
ClassTelevision Picture Tube
BaseJETEC B7-208
Filament6.3V @ 600mA
Construction
Primary TypeRectangular Glass
EnvelopeGlass
Sections1
Filament / Heater
Heater Notesac or dc
Absolute Maximum Ratings
Plate Voltage18000 V
Grid 2 Voltage500 V
H-C Voltage180 V
Audio Performance
Key Features
- 110° Magnetic Deflection
- Aluminized
- No Ion Trap
- Low Voltage Electrostatic Focusing
- External Conductive Coating
- Neutral Gray Glass
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical Operating Conditions | 16000V | - | - | - | - |
Application Notes
Shielding for x-ray radiation may be needed when operating conditions involve voltages in excess of 16 kilovolts. Operation with anode voltage less than 11000 volts is not recommended. Protective resistance in grid 4 and grid 2 circuits is advisable.
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