In article <
1443568483.26757.YahooMailBasic@...>,
Malcolm Parker-Lisberg
mparkerlisberg@... [Homebrew_PCBs]
<
Homebrew_PCBs@yahoogroups.com> wrote:
> Copper clad FR4 was available, but a lot of SRBP was used as it was much
> cheaper. The first method was to paint, by hand, using mothers thinned
> nail varnish onto a carbon paper print traced from the layout printout.
I was using car touch-up paint. Remember those little tins with a small
paint-brush fixed inside the lid?
Then drilled by hand using a 1mm HSS bit held in a pin-holder chuck; good
job SRBP was no near as abrasive as glass fibre board is.
--
Stuart Winsor
Tools With A Mission
sending tools across the world
http://www.twam.co.uk/