In a message dated 11/7/99 7:41:54 PM Central Standard Time, tesla-at-pupman-dot-com writes: << I just picked up a set of 5C22 (Sylvania in this case), still looking for pin-out and example schematics. >> Please describe the 5C22. Give dimensions. I have the pinout and specs for a 9C22 which is a 50 kW triode. Richardson Electronics lists the 5C22 for $360 in 1990. Cheers, Ralph Zekelman