[sdiy] Homemade doubled sided PCB - what a dif a day makes

[Peter Grenader]

OK, I am pleased to announce that it looks like I have a perfectly
registered double sided PCB sitting in a TIN flash bath as I type this.

What a pain THAT was.

Interesting - I used Radio Shack Copper clad yesterday.  While I didn't
notice if it was 2 OZ or 1 OZ copper, it took nearly 55 minutes to etch,
just to find that half of the friggin thing was about a fat 64th out of
register front to back.

The copper clad today stripped in 7 minutes.  And thankfully, it uncovered a
board that was pretty much buried front to back.  yay!

Amazing - the difference in etching time.  Same bottle of Ferrite Chl - both
baths new (not reused) both slightly heated to the same temporature.

Anyway, I've got my board.