Tube-number record
CAT 17
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CAT 17 is a tube type in the TubeDatabase archive (class: HF Amplifier Triode). Recorded specifications: brand Marconi, construction Triode, maximum plate voltage 20000 V, and maximum plate dissipation 150000 W. The archive does not yet hold a photographed example of this type.
BrandMarconi
ClassHF Amplifier Triode
Construction
Primary TypeTriode
EnvelopeWater-cooled anode
SectionsSingle
Filament / Heater
MaterialTungsten
Absolute Maximum Ratings
Plate Voltage20000 V
Plate Dissipation150000 W
Audio Performance
Key Features
- Water-cooled anode transmitting triode
- Tungsten filament
- High frequency amplifier up to 25 Mc/s
- Water-cooled filament leads
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| HF Power Amplifier Class C Telegraphy (Unmodulated) | 20000 V | 54000 | 740 | 40 | 18800 mA |
| HF Power Amplifier Class B Telephony (Carrier) | 20000 V | — | — | — | 10600 mA |
Application Notes
The valve must be completely supported by its water jacket, which should be adjusted so that the axis is vertical. All cooling supplies must be started before applying voltages and continue for 2 minutes after removal.
Datasheets
Datasheet: CAT17.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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