3C34
0 Tubes in archive
BrandHeintz & Kaufman, Ltd.
ClassTriode
BaseSmall 4-Pin
Construction
Primary TypeTriode
EnvelopeGlass
Base MaterialCeramic
Filament / Heater
MaterialThoriated Tungsten
Absolute Maximum Ratings
Plate Voltage2000 V
Plate Dissipation28 W
Grid 1 Voltage-250 V
Cathode Current75 mA
Audio Performance
Power Output120 W
Key Features
- Triode Amplifier-Oscillator
- Thoriated Tungsten Filament
- Convection Cooling
- Ceramic Base
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Average Characteristics | 1000V | 2600 | - | 25 | 35mA |
| Class B Audio-Frequency (Two Tubes) | 1500V | - | 21200 | - | 136mA |
| Class C Radio-Frequency (Plate Modulated) | 1500V | - | - | - | 50mA |
| Class C Radio-Frequency (Unmodulated) | 2000V | - | - | - | 56mA |
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