In Reply to: RE: McIntosh MA6100 repairs posted by Michael Samra on April 15, 2017 at 18:17:54:
I used MJ15003G, the same shipped by McIntosh.
There is one further thing I've noticed. After playing music for a couple of hours, one channel's heatsink is still warmer than the other. All DC measurements I can take between the two channels have them very close to one another. The only difference I can find is that on Q405 on the warmer channel, I measure about 22Megohms between base and emitter. On Q406 on the other channel, no resistance registers on a Fluke DMM.
At idle, there is no difference.
Unfortunately, no generic transistor cross seems to be known for Q405/406 (132-081), meaning I'd have to order from McIntosh, which takes about 3x as long as ordering from Mouser.
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Follow Ups
- RE: McIntosh MA6100 repairs - Thermionic27609 08:58:44 04/16/17 (2)
- RE: McIntosh MA6100 repairs - Michael Samra 09:32:40 04/16/17 (1)
- RE: McIntosh MA6100 repairs - Thermionic27609 15:52:28 04/16/17 (0)