Tube-number record
HY25
0 archive entries
HY25 is a tube type in the TubeDatabase archive (class: Triode Transmitting Tube). Recorded specifications: brand Hytron, construction Triode, base Ceramic, socket 4-pin, maximum plate voltage 800 V, and maximum plate dissipation 25 W. The archive does not yet hold a photographed example of this type.
BrandHytron
ClassTriode Transmitting Tube
Base4-pin
Construction
Primary TypeTriode
EnvelopeST-16
Base MaterialCeramic
SectionsSingle
Filament / Heater
MaterialThoriated Tungsten
Absolute Maximum Ratings
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Average Characteristics | 800 V | 3000 | — | 55 | — |
| A.F. Power Amplifier Class B (2 tubes) | 800 V | — | 9000 | — | 140 mA |
| R.F. Power Amplifier Class C Telegraphy | 750 V | — | — | — |
Application Notes
The HY25 is a high-mu triode designed for RF power amplification and Class B modulation. It operates at maximum ratings up to 60 megacycles.
Datasheets
Datasheet: HY25.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
0 results