DIYbanter - View Single Post - Best self-assembly electronics kits for beginners?

Terry Casey

In article
,
says...

DIY PCB manufacturing of the type of thing you will find in that era of
mag is easy. Typically single layer. Get a decent copy of the layout
onto a transparency, UV expose a board with a photo resist coating and
away you go.

OK if you've got the UV unit.

I used to do mine completely manually. If a full size layout
wasn't available, draw it out on 0.1" squared graph paper them
temporarilly wrap it round the board and tape on the non-foil
side.

Go round with a sharp scriber to transfer the hole positions
to the board, then very carefully draw the tracks on the foil
using nail varnish - something dark to show up well on the
polished copper.

Etch then remove the varnish with acetone.

Time consuming, of course, but there was always a very
satisfied feeling when you could hold the finished article in
your hand!

Usually a much more compacr result that possible with other
construction methods, particularly if the inter-strip
capacitance of Veroboard ruled out that method for the
particular application.

--

Terry

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