On Monday, 4 February 2019 11:46:12 UTC, Terry Casey wrote:
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.

There can't be many folk here that don't have access to the sky


NT