35T
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BrandEitel-McCullough, Inc.
ClassHigh-Mu Triode
BaseMedium 4-pin bayonet
Construction
Primary TypeTriode
EnvelopeGlass
Base MaterialCeramic
SectionsSingle
Filament / Heater
MaterialThoriated tungsten
Absolute Maximum Ratings
Plate Voltage2000 V
Plate Dissipation50 W
Cathode Current150 mA
Audio Performance
Power Output235 W
Key Features
- High-Mu Triode
- Thoriated Tungsten Filament
- Class B Modulator
- Class C Oscillator
- Class C Amplifier
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class B Audio (2 tubes) | 2000V | 2850 | - | 39 | 167mA |
| Class C Telegraphy (1 tube) | 2000V | 2850 | - | 39 | 125mA |
Application Notes
The charts show relationship of plate efficiency, power output and grid driving power at various plate voltages.
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