21CLP4
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BrandRogers Electronic Tubes & Components
ClassTelevision Picture Tube
BaseB7-51
Filament6.3V @ 300mA
Construction
Primary TypeCRT
EnvelopeJ171
SectionsSingle
Filament / Heater
Heater NotesSurge heater voltage must not exceed 9.5V rms; maximum warm-up surge 410V when heater is negative.
Absolute Maximum Ratings
Plate Voltage18000 V
Grid 2 Voltage500 V
Grid 1 Voltage-150 V
H-C Voltage200 V
Audio Performance
Key Features
- Rectangular television picture tube
- Filter glass
- Metal-backed screen
- Electrostatic focusing
- 90° magnetic deflection
- Ion trap
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical focusing condition 1 | 14000V | - | - | - | 0.1mA |
| Typical focusing condition 2 | 16000V | - | - | - | 0.1mA |
Application Notes
The socket for the base should not be rigidly mounted; it should have flexible leads. Grid No. 3 and 5 voltage range for optimum focusing varies with anode voltage.
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