Tube-number record
RS 249
0 archive entries
RS 249 is a tube type in the TubeDatabase archive (class: Ultrakurzwellen-Triode). Recorded specifications: brand Telefunken, construction Triode, base Plastic, socket Side-contact (P-base), maximum plate voltage 600 V, and maximum plate dissipation 13 W. The archive does not yet hold a photographed example of this type.
BrandTelefunken
ClassUltrakurzwellen-Triode
BaseSide-contact (P-base)
Filament12.6 V @ 500 mA
Construction
Primary TypeTriode
EnvelopeGlass
Base MaterialPlastic
Sectionssingle
Filament / Heater
Heater NotesHeater voltage reduced to 11.5V for operation at wavelengths < 3m
Absolute Maximum Ratings
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| RF Oscillator/Amplifier | 600 V | 3600 | 5555 | 20 | 40 mA |
Application Notes
Anode, grid, and cathode leads are brought out through the top of the glass bulb to minimize lead inductance. Use flexible leads for these connections to avoid mechanical stress on the glass.
Datasheets
Datasheet: RS249.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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