1500T
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BrandEimac
ClassTriode
BaseSpecial 4-pin No. 5005B
Construction
Primary TypeMedium-mu transmitting triode
EnvelopeGlass
Base MaterialMetal/Ceramic
Sections1
Filament / Heater
MaterialThoriated tungsten
Absolute Maximum Ratings
Plate Voltage8000 V
Plate Dissipation1500 W
Cathode Current1250 mA
Audio Performance
Power Output7000 W
Key Features
- Thoriated tungsten filament
- Medium-mu
- Radiation cooled plate
- High-vacuum transmitting triode
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class-C Telegraphy | 5000V | 10000 | 2400 | 24 | 1000mA |
| Class-C Telegraphy | 6000V | 10000 | 2400 | 24 | 1000mA |
| Class-C Telegraphy | 7000V | 10000 | 2400 | 24 | 860mA |
Application Notes
The tube must be mounted vertically, base up or base down. The envelope and seals require artificial cooling via fan. A minimum flow of 2 cubic feet per minute is required for grid and filament seals.
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