Tube-number record
3CX5000A7
0 archive entries
3CX5000A7 is a tube type in the TubeDatabase archive (class: High-Mu Power Triode). Recorded specifications: brand Varian EIMAC, year 1984, construction Triode, base Metal, socket Special / none, maximum plate voltage 6500 V, and maximum plate dissipation 5000 W. The archive does not yet hold a photographed example of this type.
BrandVarian EIMAC
ClassHigh-Mu Power Triode
BaseSpecial / none
Filament10 V @ 17500 mA
Construction
Primary TypeTriode
EnvelopeCeramic/Metal
Base MaterialMetal
SectionsSingle
Filament / Heater
MaterialOxide-coated Unipotential
Warm-up Time300s
Heater NotesVoltage should be maintained within plus or minus 0.5 volt.
Absolute Maximum Ratings
Plate Voltage6500 V
Plate Dissipation5000 W
Cathode Current2500 mA
Audio Performance
Power Output5000 W
Key Features
- Forced-air cooled
- Beam-forming cathode
- Low grid interception
- Ceramic/metal construction
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class AB Cathode Driven | 4000 V | — | — | 200 | 1250 mA |
| Class AB Cathode Driven | 5000 V | — | — | 200 | 1450 mA |
| Class AB Cathode Driven | 6000 V | — | — | 200 | 1550 mA |
Application Notes
Designed for use as a cathode-driven Class AB rf amplifier or Class C power amplifier. Tube does not require a socket and is bolted directly to the chassis.
0 results