3J/170E
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ClassTriode
Construction
Primary Typetriode
EnvelopeGlass/Metal
Sectionssingle
Filament / Heater
MaterialThoriated tungsten
Absolute Maximum Ratings
Plate Voltage6000 V
Plate Dissipation3500 W
Cathode Current1250 mA
Audio Performance
Key Features
- Air-Blast-Cooled
- Thoriated tungsten filament
- External radiator
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class B Telephony (Carrier) | 5000V | 6060.6 | 3300 | 20 | 900mA |
| Class C Power Amplifier (Modulated) | 4000V | - | - | 20 | 1000mA |
| Class C Power Amplifier or Oscillator (Unmodulated) | 6000V | - | - | 20 | 1250mA |
Application Notes
Class B Telephony involves carrier conditions per valve for use with 100% modulation. Class C Power Amplifier subject to anode modulation.
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