Many of the old PCBs were made with phenolic PCB material. Thecolor varies between brown to various shades of beige.
You can still purchase bare (blank) copper-clad phenolic PCBmaterial.
Another characteristic of old PCBs is that the layout is often done byhand, using crepe dots and crepe tape in various widths. Evenearlier layouts were strictly hand-drawn - no tape or dots.
dwayne
At 01:08 PM 11/12/2016, 'Brad' unclefalter@... [Homebrew_PCBs]wrote:
Hey guys,
I have recently heard of some methods of �dyeing� PCBs to achievecoloration closer to what vintage PCB stock looked like. I�mwondering if any of you have experience on this, what works, etc.
I recently acquired some original, untouched Mark-8 computer boards:http://bradhodge.ca/blog/?p=826
I�m hoping to use them to help create replicas. But I just can�tget the PCB to look the way I want. They look toomodern. I�ve heard dyeing can help, and that one can evenfake the fab house marks somehow.
I�m surprised there isn�t a stock of vintage copper clad out theresomewhere. Seems to be vintage everything else these days inelectronics..
Brad
--
Dwayne Reid <dwayner@...>
Trinity Electronics Systems Ltd Edmonton, AB,CANADA
780-489-3199 voice 780-487-6397 fax 888-489-3199 Toll Free
Custom Electronics Design and Manufacturing