Tube-number record
3CW20,000H7
0 archive entries
3CW20,000H7 is a tube type in the TubeDatabase archive (class: Power Triode). Recorded specifications: brand EIMAC, year 1974, construction Triode, base Metal/Ceramic, socket Flexible / flying leads, maximum plate voltage 20000 V, and maximum plate dissipation 20000 W. The archive does not yet hold a photographed example of this type.
BrandEIMAC
ClassPower Triode
BaseFlexible / flying leads
Construction
Primary TypeTriode
EnvelopeCeramic/Metal
Base MaterialMetal/Ceramic
Sections1
Filament / Heater
MaterialThoriated Tungsten
Absolute Maximum Ratings
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Radio Frequency Linear Amplifier (Grounded Grid, Class B) | 7000 V | — | — | 200 | 3720 mA |
| Audio Frequency Amplifier (Two Tubes, Class B) | 7000 V | — | — | 200 | 10000 mA |
| Radio Frequency Power Amplifier (Class C) | 7000 V | — | — |
Application Notes
Anode cooling is achieved by circulating water through the integral jacket. Base requires forced-air cooling (30-50 cfm). Tube must be operated vertically, anode up or down. Filament voltage should be measured at terminals with 1 percent accuracy.
0 results