Jim Lesurf wrote:

Scots Guide? One of your pages?

Erm... Hundreds, actually. ;-)

Have a look at the 'Scots Guide' address in my sig, below. When
there, go to the section on 'Analog and Audio', and you will then
find a link to some pages on active filters. There are bits on
related topics scattered around the 'Guide'.

Thanks, Jim. I'll have a look over the next few days - I've got a borrowed
scope coming after ther weekend (my own has packed in - one trace down, and
nil timebase - can't do much with a vertical line!), so I'll be wanting to
make a start with the breadboard by then.


--
Wally
www.artbywally.com
www.wally.myby.co.uk