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Old 28th February 2004, 04:01 AM   #1
SDJeff is offline SDJeff  United States
diyAudio Member
Join Date: Feb 2004
Location: Utah
Cool NEW to forum and audio. using OEM parts for new amp?

Hi, all. new here.

My electronics background is pretty spotty. Please go easy. I'm pretty good with robotics, though.

I just recently gutted some not-so-old-but-totally-fried Sony and Kenwood amps. The power stages and related circuits are good, the controls and preamp (on one) are fried.

I want to try my hand at building a stereo power amp, preferably a class AB or A.

I have a choice of either these MN2488 and MP1620 Darlington pairs from the Sony or these 2SC2921 from the Kenwood. Which would be better? Also, how would I measure the transformers (LOTS of secondary leads) to find out which voltage is where? I plan to use the original caps, etc. all on a new PCB, of course.

Any suggestions for a beginner prject, or is all of this "recycling" not such a good idea. Aslo, I'm poor and doing this on the cheap.

Thanks in advance....
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