[sdiy] LM394 vs. MAT02 vs. ?

[Paul Perry]

----- Original Message -----
From: "Roy J. Tellason>I have a curve tracer,  and some time back hooked up
a
> "matched pair" of ECG power transistors -- the unit has two sets of
> connections and a switch to go back and forth -- and I couldn't see how
they
> were all that well matched,  but I don't know what characteristic they
were
> supposed to be matched for.
>
I believe they are matched for gain, and only within 20%.
That is, good enough to get a very ordinary domestic HIFI
working again, after shorting the speaker leads.

paul perry Melbourne Australia