Hi Dan, I have seen those valves advertised but have no idea of the internal construction apart from the fact that they need about 1000 volts to run them which suggests a stack of piezo elements in series. Do you have any idea of the internal comstruction of these things or better still where I can get some at surplus prices?.
regards Mark
Created on Sunday, December 17, 2000 12:14 AM EDT by Mark G Harriss