5J/180E
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BrandStandard Telephones and Cables Limited
ClassForced-Air-Cooled R.F. Pentode
Construction
Primary TypePentode
EnvelopeForced-Air-Cooled Radiator
Filament / Heater
MaterialThoriated-tungsten
Absolute Maximum Ratings
Plate Voltage6000 V
Plate Dissipation3500 W
Grid 2 Voltage1500 V
Audio Performance
Power Output5750 W
Key Features
- Forced-air-cooled
- Thoriated-tungsten filament
- Internal radiator for cooling
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class C Power Amplifier (Carrier conditions for 100% modulation) | 4500V | 4000 | - | - | 1000mA |
| Class C Power Amplifier or Oscillator (Unmodulated) | 6000V | 4000 | - | - | 1400mA |
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