Tube-number record
HY40
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BrandHytron
ClassTriode
Base4-pin
Construction
Primary TypeTriode
EnvelopeST-19
Base MaterialCeramic
Sectionssingle
Filament / Heater
MaterialThoriated Tungsten
Absolute Maximum Ratings
Plate Voltage1000 V
Plate Dissipation40 W
Grid 1 Voltage-200 V
Cathode Current115 mA
Audio Performance
Power Output175 W
Key Features
- High efficiency triode
- Rugged construction
- Graphite anode
- Large metal cap plate lead
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| General Triode Characteristics | 1000 V | 3800 | — | 25 | 115 mA |
| Class C Telegraphy | 1000 V | — | — | — | 115 mA |
| Class B Modulator (Two Tubes) | 1000 V | — | — | — |
Application Notes
The internal structure permits operation at maximum rating at frequencies up to 60 megacycles.
Datasheets
Datasheet: HY40.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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