"David Harris" wrote in message
...

I used to sell transformers to Tim years ago when I worked for Clarke &
Smith (happy Vortexion days!)....

Aah Vortexion. A worthy name from the past:-)
I used to have a CBL6 and a Vortexion mixer!

He literally used to draw his designs on the back of a fag packet

That was pretty common. I knew a chap from Leevers Rich
who did the same thing, plus "shirt cuff" calculations!

Iain