UH50
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BrandEimac
ClassTriode
Construction
Primary TypeTriode
EnvelopeGlass
SectionsSingle
Filament / Heater
MaterialThoriated Tungsten
Absolute Maximum Ratings
Plate Voltage1250 V
Plate Dissipation50 W
Cathode Current125 mA
Audio Performance
Key Features
- Radiation cooled
- Ultra high frequency
- Tantalum elements
- Thoriated tungsten filament
- No getter required
- Directly interchangeable with certain conventional tubes
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class C Telegraphy | 1000V | - | - | - | 125mA |
| Class C Telegraphy | 1250V | - | - | - | 125mA |
| Class C Telephony | 750V | - | - | - | 115mA |
| Class C Telephony | 1000V | - | - | - | 125mA |
| Class C Telephony | 1250V | - | - |
Application Notes
Tube must be operated vertically with ample ventilation provided. Seals must be cooled by Radiator Connectors. Plate is designed to operate at a cherry-red color on its normal dissipation rating of 50 watts. A perceptible red color is noted at 25 watts.
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