I have a Kris Mach 3 that I bought non working I replaced capacitors, diodes and put good tubes in it and it is working now but not like it should. After turning on amp and giving it some warm up it dead keys about 40w and swings to70-85w but the longer you key down the amp the more the watts will go up. If I key up and hold deadkey a couple of minutes watts will go up to 70w deadkey and amp will swing to 175w but unkey wait 2-3 minutes and and amp will be back to 40w swinging 85w its almost like resistors are draining or bleeding power in standby mode. It is a good amp for long term talking because you can keep watts up but it needs help Any help or comments are welcomed. Thanks Jimbo165