4KP
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BrandElectronic Tube Corporation
ClassCathode-ray tube
Base12 Pin Duodecal
Filament6.3V @ 600mA
Construction
Primary TypeElectrostatic CRT
EnvelopeGlass
SectionsSingle gun
Filament / Heater
Absolute Maximum Ratings
Plate Voltage2500 V
Grid 1 Voltage-200 V
H-C Voltage180 V
Audio Performance
Key Features
- Short 3-1/2 square face
- Very high sensitivity
- Low pattern distortion
- Negligible focusing electrode current
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical Operation | 1500V | - | - | - | - |
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