"David Looser" wrote in message
...
"fredbloggstwo" wrote

snip

With something as simple as a line amp I'm suprised that you need
auto-routing. Most PCB layout software offers a manual routing option, why
not use that?

David.

Hi David

I am doing the manual routing - I thought that I had mentioned that in my
original post as I like the challenge of doing so even more so on a single
sided board :-).

As regards the RF considerations that Don mentioned. I also seemed to
remember doing university experiments where it was clear that low frequency
signals do radiate at sharp corners and plotting them on conductive paper as
so many volts per metre.

The other points raised such as grounding and power lines are taken for
granted. I was just wondering if there is any evidence on the more esoteric
aspects as a point of interest.

On the point of 'a complicated line amp', its a bit of an unusual one as it
is a Class A design with a constant current output stage, quite elegant,
that drives a chunky transformer, so having 4 transistors and a plethora of
resistors and diodes, its not quite like a straight forward your average
5534 with a beefed up output stage.

Mike