"Chris F." ) writes:
Is it possible to substitute a Darlington transistor with a non-Darlington
one? I'm working on a Kenwood amp, it had blown the output transistors
2SD2222 and 2SB1470. I ordered some new replacements and installed them, one
channel worked but the other blew right out again. Having spent $45 on this
amp so far including a service manual, I don't want to gamble any more money
on it. So I was wondering if I can replace those transistors with some
non-Darlington ones I already have. The packages and electrical
characteristics are very similar, but of course this sounds just a bit too
easy.
Thanks for any advice.

Have you considered that it may not be a mere transistor failure? IN other
words, something else went bad, and took the transistors with them. And if
that's the case, the problem won't go away no matter how many transistors
you put in there. You need to figure out if there is something else
wrong. At least you have the manual.

Michael