Tube-number record
TD1-100A
0 archive entries
TD1-100A is a tube type in the TubeDatabase archive (class: Disc Seal Triode). Recorded specifications: brand Mullard, construction Triode, base Metal/Ceramic, socket Planar / disc seal, maximum plate voltage 1000 V, and maximum plate dissipation 100 W. The archive does not yet hold a photographed example of this type.
BrandMullard
ClassDisc Seal Triode
BasePlanar / disc seal
Filament6.3 V @ 1 mA
Construction
Primary TypeTriode
EnvelopeDisc Seal
Base MaterialMetal/Ceramic
SectionsSingle
Filament / Heater
Heater NotesAt frequencies higher than 400 Mc/s, the heater voltage may have to be reduced after operation commences due to back bombardment heating.
Absolute Maximum Ratings
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Characteristics | 600 V | 25000 | — | 100 | 78 mA |
| Class C Telegraphy (500 Mc/s) | 800 V | — | — | — | 80 mA |
| Class C Telegraphy (2500 Mc/s) | 900 V | — | — | — | 90 mA |
Application Notes
The TD1-100A operates at frequencies where transit time effects cause back bombardment heating of the cathode. Heater voltage reduction may be necessary above 400 Mc/s. Natural or forced-air cooling is required; if cowling is not used, up to twice as much air may be required.
Datasheets
Datasheet: TD1-100A.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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