Tube-number record
HT 321
0 archive entries
HT 321 is a tube type in the TubeDatabase archive (class: Höchstfrequenztriode). Recorded specifications: brand VEB Werk für Fernsehelektronik-Berlin, construction Triode, socket Coaxial, and maximum plate voltage 2000 V. The archive does not yet hold a photographed example of this type.
BrandVEB Werk für Fernsehelektronik-Berlin
ClassHöchstfrequenztriode
BaseCoaxial
Filament12.6 V @ 1.1 mA
Construction
Primary TypeTriode
EnvelopeMetal-Ceramic
SectionsSingle
Filament / Heater
Warm-up Time120s
Heater NotesHeater voltage must be reduced for frequencies above 400 MHz: 12.1V (400-1000 MHz), 11.5V (1000-2000 MHz), 10.8V (>2000 MHz).
Absolute Maximum Ratings
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Static | 1300 V | 23000 | — | 110 | 100 mA |
| Oscillator (1.66 GHz) | 600 V | — | — | — | 100 mA |
Application Notes
The HT 321 is an air-cooled UHF triode in metal-ceramic design. It is now only supplied for equipment maintenance (Nachbestückung). Adequate cooling airflow is required at maximum plate dissipation.
Datasheets
Datasheet: HT321.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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