Tube-number record
YD1140
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ClassPower Triode
BaseSpecial / none
Construction
Primary TypeTriode
EnvelopeMetal-glass
SectionsSingle
Filament / Heater
MaterialThoriated tungsten
Absolute Maximum Ratings
Plate Voltage15000 V
Plate Dissipation100000 W
Grid 1 Voltage-1200 V
Cathode Current12500 mA
Audio Performance
Power Output106000 W
Key Features
- Water cooled
- Direct heating
- Thoriated tungsten filament
- Industrial oscillator capability
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| R.F. Class C Telegraphy | 12000 V | 60000 | — | 25 | 12000 mA |
| R.F. Class C Telegraphy | 10000 V | — | — | — | 10000 mA |
| R.F. Class C Anode Modulation | 10000 V | — | — | — |
Application Notes
At frequencies above 6 MHz air cooling must be used to keep the anode and grid seal temperatures below 180C. Air flow of 2.5 m3/minute at 30 MHz.
Datasheets
Datasheet: YD1140.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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