On Sun, 11 Jul 2004 00:43:11 +0200, "pil" wrote:

BC 547
BC 337

"Norm Dresner" wrote in message
...
"pil" wrote in message
...
With what transistors can I substitute the ones in the amplifier ear?
http://www.electronics-lab.com/projects/audio/023/

I have the following available:

2N2222
2N3904
BC309
BC258

What was originally used?

Just use the 3904s all through (first substitute) or 2222s mebe. Ought
to do the trick, I'd have thought. Without thinking too deeply about
it, of course.
I stand to be corrected, as always.
--

"What is now proved was once only imagin'd." - William Blake, 1793.