Homebrew PCBs

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

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