Tube-number record
3CW20,000H3
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BrandEimac
ClassPower Triode
BaseSpecial / none
Construction
Primary TypeTriode
EnvelopeCeramic-metal
Base MaterialMetal/Ceramic
SectionsSingle
Filament / Heater
MaterialThoriated-Tungsten
Absolute Maximum Ratings
Plate Voltage12000 V
Plate Dissipation20000 W
Grid 1 Voltage-1000 V
Cathode Current4000 mA
Audio Performance
Key Features
- Water-cooled anode
- Ceramic-metal construction
- Designed for industrial RF heating
- Plentiful reserve emission
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class-C (Filtered DC) 7kV | 7000 V | — | 720 | 20 | 4000 mA |
| Class-C (Filtered DC) 10kV | 10000 V | — | 1270 | 20 | 4000 mA |
Application Notes
The anode is conservatively rated at 20kW dissipation with low water flow. Input of 40kW is permissible up to 90MHz. Usable up to 140MHz with reduced plate voltage (7000V).
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