Tube-number record
DA 8/300
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BrandPHILIPS
ClassRectifier Tube
Construction
Primary TypeDiode
Rectifier TypeVacuum
EnvelopeGlass
SectionsSingle
Filament / Heater
Absolute Maximum Ratings
Plate Voltage8000 V
Plate Dissipation150 W
Cathode Current40 mA
Audio Performance
Power Output320 W
Key Features
- Identical construction to TA 8/300 transmitter tube except for the grid
- Requires at least two DA 8/300 tubes for TA 8/300 transmitter operation
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Rectifier | 8000 V | — | 2500 | — | 40 mA |
Application Notes
Special rectifier tube specifically designed for the TA 8/300 transmitter tube. Produced DC voltage varies between 4000 and 8000 volts.
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