3DA3
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BrandGeneral Electric
ClassHigh-Voltage Rectifier
BaseOctal 8-Pin
Filament3.15V @ 480mA
Construction
Primary TypeDiode
Rectifier TypeVacuum
EnvelopeT-9
Base MaterialGlass
Sections1
Filament / Heater
Warm-up Time4s
Heater NotesRapid warm-up heater-cathode design
Absolute Maximum Ratings
Plate Voltage30000 V
Cathode Current2.2 mA
Audio Performance
Key Features
- Diffusion bonded cathode
- New rapid warm-up heater-cathode design
- X-radiation rating
- Internal Shielding
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Average Characteristics | 60V | - | - | - | 7mA |
Application Notes
Designed for use in color television receivers as the high-voltage rectifier to supply power to the anode of the picture tube.
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