Tube-number record
SRS 503
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ClassTransmitting Pentode
BaseSpecial / none
Construction
Primary TypePentode
EnvelopeGlass
Sections1
Filament / Heater
MaterialThoriated Tungsten
Absolute Maximum Ratings
Plate Voltage2000 V
Plate Dissipation120 W
Grid 2 Voltage450 V
Cathode Current200 mA
Audio Performance
Key Features
- Radiation-cooled
- Thoriated tungsten cathode
- 150 Watt output
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| B-Betrieb HF-Verstärkung | 2000 V | 3500 | — | — | 150 mA |
| C-Betrieb HF-Verstärkung | 2000 V | — | — | — | 150 mA |
Application Notes
Transmitting pentode for communications technology. Max frequency 50 MHz.
Datasheets
Datasheet: SRS503.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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