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> Eimac 3CW20000A7 triode tube for rebuild
Eimac 3CW20000A7 triode tube for rebuild
Eimac 3CW20,000A7 Water Cooled Triode Tube
Comes with what you see in the pictures. If you don't see it, you probably wont get it.
Specifications may vary due to upgrades, options or revisions this unit may or may not have.
Used in Ham Radio, Induction Heaters, Plasma Generators, RF Generators and has many more applications.
* Probably needs rebuild even though it says it was rebuilt by Econco.
* There is a stress fracture in one of the water line connections because it was bent and will need to be resoldered. (Fracture shown in picture 4)
The Eimac 3CW20,000A7 is a high-mu power triode intended to be used as a zero bias Class B amplifier in audio or radio frequency applications. Operation with zero-grid bias offers circuit simplicity by eliminating the bias supply. In addition, grounded grid operation is attractive since a power gain as high as twenty times can be obtained. The 3CW20,000A7 is electrically identical to the air-cooled 3CX10,000A7 except for its 29kW plate dissipation rating.
Serial Number: B6N 471 W20,A7
Amplification Factor (µ): 200.0
Filament Current (A): 99.000
Frequency (MHz) Maximum: 110
Typical Anode Current (A): 4.000
Typical Anode Voltage (V): 7,000
