"Chris F." wrote:

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.

You can't.

The idea is to fix the underlying fault before replacing the output devices.
Admittedly you can get away with it sometimes but not in this instance. Those
output devices shouldn't be much more than a couple of dollars each though.

Graham