TDO3-5
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BrandMullard
ClassDisc Seal Triode
BaseDisc Seal
Construction
Primary TypeTriode
EnvelopeDisc Seal
Base MaterialMetal/Ceramic
SectionsSingle
Filament / Heater
Absolute Maximum Ratings
Plate Voltage350 V
Plate Dissipation5 W
Cathode Current25 mA
Audio Performance
Key Features
- Disc seal construction
- Natural cooling
- R.F. amplifier application
- Mounting position: Any
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| R.F. amplifier | 250V | - | - | 70 | 10mA |
Application Notes
Anode seal temperature must be limited; mass of metal in close thermal contact with anode disc should not be less than 45g of brass.
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