Tube-number record
1K3
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BrandGeneral Electric
ClassHigh-Voltage Rectifier
BaseOctal
Construction
Primary TypeDiode
Rectifier TypeHalf-Wave
EnvelopeT-9
Base MaterialIntermediate Shell Octal
SectionsSingle
Filament / Heater
MaterialCoated
Absolute Maximum Ratings
Plate Voltage26000 V
Cathode Current0.5 mA
Audio Performance
Key Features
- Filamentary diode
- Flyback rectifier
- Direct replacement for 1J3
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Tube Voltage Drop | 225 V | — | — | — | 7 mA |
Application Notes
Designed for use in television receivers as the high-voltage rectifier to supply power to the anode of the television picture tube. Primarily intended for flyback types of power supplies.
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