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IGBT switching in Carver PT1250
« on: August 15, 2013, 03:01:06 PM »
I have a Carver amp in which the MJ10023 switching transistors have shorted. I read someplace on the net that someone had successfully retrofitted IRG4CP40U  IGBT's in place of the transistors.  Has anyone any experiences with these devices? I'm not sure what sort of input conditioning would be needed on the gate, or biasing. From what I've read, it can only withstand maximum 20 volts on the gate.
Bill Yacey
"Adjust R116 for least smoke"


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