Testing 6550 on Hickok 752?

I don't see why you can't use the KT88 settings. If you changed the tube to SS in the tester, I would guess it would need recalibrated. Also, the SS replacements might have to much voltage in compered to tubes. The universal adapters for amps sometimes cause damage, do to the higher voltage they output. If they're made by someone who specializes in it, it may work. A lot of companies claim their tube adapters for amps will work, but those sure have been a problem.

I use the same settings as KT-88 in a 539C with no problems.

You can look up both here and check to see the pins are the same.

[skipharwood@gmail.com]http://www.triodeel.com/tubedata.htm[/skipharwood@gmail.com]

Whoops!!!!