CAT 17
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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) | 20000V | 54000 | 740 | 40 | 18800mA |
| HF Power Amplifier Class B Telephony (Carrier) | 20000V | - | - | - | 10600mA |
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.
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