printed circuit board exposure

Paul Perry pfperry at
Fri Jan 4 00:51:24 CET 1980

Rob, I saw somewhere that most 'blacklites' for posters etc have
only the 'near UV' & wont expose a board.

You will have to make a 'test strip' by moving a metal sheet
around so that you have exposures of 30 sec, i, 2,...64 minutes.

I'm using press&peel blue for my prototypes, BTW.

paul perry melbourne australia

If yu DO go the sun route, the forst thing to build might be an integrating 
UV exposure meter! (not joking)

More information about the Synth-diy mailing list