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G8LSD Valve Collection
The 3CX3000A7 is a ceramic disc seal triode is designed for Industrial heating and transmitter use.
When in operation the ceramic is seen to glow pink. It is directly heated and the grid is the top ring. The output power is several kilowatts of RF.
The co-axial envelope is 100 mm in diameter and, including the base rings, is 210 mm tall.

This exhibit was last updated on 04 August 2006