On Sun, 10 Oct 2004 21:34:00 GMT, Bob Latham
wrote:

In article ,
Don Pearce wrote:

[Snip]

What was this amp?

It was kit amp where you get a bag of bits and a couple of PCBs. It had 4
metal can TO3 power mosfets per channel. I think the name was Simmer or
something like that, a long time ago.

Please don't tell me I hadn't constructed them correctly that would be too
much.

Cheers,

Bob.

Well, it would perhaps reveal a genuine effect - that of acoustic
feedback - which could very well be responsible for the kind of effect
you describe. Whether that would arise from poor assembly on your part
or something intrinsic in the design of the kit, I could not say.

d
Pearce Consulting
http://www.pearce.uk.com