Tube-number record
HT 322
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BrandVEB Werk für Fernsehelektronik Berlin
ClassHigh Frequency Triode
BaseCoaxial
Filament12.6 V @ 0.8 mA
Construction
Primary TypeTriode
EnvelopeMetal-Ceramic
SectionsSingle
Filament / Heater
MaterialOxide
Warm-up Time2s
Heater NotesHeater voltage depends on frequency: 12.1V (400-1000MHz), 11.5V (1-2GHz), 10.8V (>2GHz)
Absolute Maximum Ratings
Plate Voltage1000 V
Plate Dissipation80 W
Grid 1 Voltage-150 V
Cathode Current125 mA
H-C Voltage100 V
Audio Performance
Power Output20 W
Key Features
- Metal-ceramic technology
- Concentric electrode connections
- Air-cooled
- Oscillator operation up to 2.75 GHz
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Static Values | 400 V | 40000 | — | 90 | 15 mA |
| Oscillator 2.31 GHz | 500 V | — | — | — | 100 mA |
| Oscillator 0.79 GHz | 800 V | — | — | — | 100 mA |
Application Notes
At frequencies above 400 MHz, heater voltage must be reduced to increase tube life. Operating position is arbitrary.
Datasheets
Datasheet: HT322.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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