Tube-number record
HK-354
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BrandHeintz & Kaufman
ClassTriode
Base4-pin
Construction
Primary TypeTriode
EnvelopeNonex Glass
Base MaterialCeramic
SectionsSingle
Filament / Heater
MaterialThoriated Tungsten
Absolute Maximum Ratings
Plate Voltage4000 V
Plate Dissipation150 W
Cathode Current300 mA
Audio Performance
Key Features
- Tantalum Plate
- Tantalum Grid
- High mutual conductance
- Low internal capacitance
- Operates at high plate voltages
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Radio Frequency Amplifier Class C | 1500 V | 5000 | 2800 | 14 | 250 mA |
| Radio Frequency Amplifier Class C | 2000 V | 5000 | 2800 | 14 | 255 mA |
| Radio Frequency Amplifier Class C | 3000 V | 5000 | 2800 | 14 |
Application Notes
The Type HK-354 GAMMATRON may be used as a Class C radio frequency amplifier with exceptionally good results. Grid leak bias may be used, but fixed bias is recommended to prevent injury during excitation failure.
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