Tube-number record
1K3-A
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BrandGeneral Electric
ClassRectifier
BaseOctal
Construction
Primary TypeDiode
Rectifier TypeHalf-Wave
EnvelopeT-9
Base MaterialGlass
SectionsSingle
Filament / Heater
MaterialCoated
Absolute Maximum Ratings
Plate Voltage26000 V
Cathode Current0.5 mA
Audio Performance
Key Features
- Built-in X-radiation shielding
- Filamentary diode
- Monochrome TV type
- Low X-radiation output design
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 in flyback types of power supplies.