5867A
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BrandEimac
ClassPower Triode
BaseSK-410
Construction
Primary TypeTriode
EnvelopeGlass
SectionsSingle
Filament / Heater
MaterialThoriated Tungsten
Absolute Maximum Ratings
Plate Voltage4000 V
Plate Dissipation350 W
Grid 1 Voltage-500 V
Cathode Current400 mA
Audio Performance
Key Features
- Graphite anode for high heat storage
- Radiation and forced-air cooling
- Thoriated tungsten filament
- Suitable for industrial heating and RF/AF power amplification
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class-C FM or Telegraphy (2000V) | 2000V | 5000 | - | 25 | 400mA |
| Class-C FM or Telegraphy (3000V) | 3000V | 5000 | - | 25 | 365mA |
| Class-C FM or Telegraphy (4000V) | 4000V | 5000 | - | 25 | 380mA |
| Class-C Oscillator Industrial Single Phase (2750V) | 2750V | 5000 | - | 25 | 340mA |
| Class-C Oscillator Industrial Single Phase (3500V) | 3500V | 5000 | - | 25 | 325mA |
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