Tube-number record
HK-24
0 archive entries
HK-24 is a tube type in the TubeDatabase archive (class: General Purpose Triode). Recorded specifications: brand Heintz and Kaufman, construction Triode, base Ceramic, socket 4-pin, maximum plate voltage 2000 V, and maximum plate dissipation 25 W. The archive does not yet hold a photographed example of this type.
BrandHeintz and Kaufman
ClassGeneral Purpose Triode
Base4-pin
Construction
Primary TypeTriode
EnvelopeGlass
Base MaterialCeramic
Sections1
Filament / Heater
MaterialThoriated Tungsten
Absolute Maximum Ratings
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Radio Frequency Power Amplifier Class C Unmodulated | 2000 V | — | — | 25 | 56 mA |
| Radio Frequency Power Amplifier Class C Unmodulated | 1500 V | — | — | 25 | 75 mA |
| Audio Frequency Power Amplifier Class B Modulator (2 Tubes) | 1250 V | — | 21200 |
Application Notes
The tantalum plate is designed to run at a cherry red color under normal operation. High vacuum is maintained by the use of tantalum without a getter.
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