Tube-number record
TD2-500A
0 archive entries
TD2-500A is a tube type in the TubeDatabase archive (class: Transmitting Triode). Recorded specifications: brand Mullard, construction Triode, base Metal/Ceramic, socket Planar / disc seal, maximum plate voltage 2700 V, and maximum plate dissipation 500 W. The archive does not yet hold a photographed example of this type.
BrandMullard
ClassTransmitting Triode
BasePlanar / disc seal
Construction
Primary TypeTriode
EnvelopeCeramic
Base MaterialMetal/Ceramic
SectionsSingle
Filament / Heater
MaterialThoriated tungsten
Absolute Maximum Ratings
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class C Telegraphy (400 Mc/s) | 2500 V | 14000 | 5000 | 70 | 380 mA |
| Class C Telegraphy (625 Mc/s) | 2200 V | 14000 | 5000 | 70 | 380 mA |
Application Notes
At frequencies higher than 600Mc/s, filament voltage must be reduced (to 3.3V or 3.2V) to compensate for back bombardment heating of the cathode.
Datasheets
Datasheet: TD2-500A.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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