Tube-number record
CAT 29
0 archive entries
CAT 29 is a tube type in the TubeDatabase archive (class: transmitting triode). Recorded specifications: brand Marconi, construction Triode, base Thoriated tungsten, socket Special / none, maximum plate voltage 15000 V, and maximum plate dissipation 18000 W. The archive does not yet hold a photographed example of this type.
BrandMarconi
Classtransmitting triode
BaseSpecial / none
Construction
Primary TypeTriode
EnvelopeWater-cooled anode
Base MaterialThoriated tungsten
Sections1
Filament / Heater
Materialthoriated tungsten
Warm-up Time30s
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| HF Power Amplifier Class C Telegraphy | 15000 V | 95000 | 4750 | 45 | 3350 mA |
| HF Power Amplifier Class C Telegraphy | 10000 V | 95000 | 4750 | 45 | 3200 mA |
| HF Power Amplifier Class C Anode Modulated | 12000 V | — | — | — |
Application Notes
The anode forms part of the envelope and requires a water jacket. Cooling supplies must start before voltages are applied. HT voltages above 7kV must be increased gradually.
Datasheets
Datasheet: CAT29.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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