开云体育

I decided to use this little circuit as a chance to learn how to make PCB's.? The first picture of the transfer and drilling is not the one I actually used.? I got the process down better but didn't take a picture of the final one.? I was also playing with a new pair of magnifying loupes which I am not used to so the soldering is awful but it works.? I went back to the bench and touched some of it up.? I layed everything out in easyeda and did the transfer by printing onto magazines sheets from my laser printer and then running it through a cheap amazon laminator about 20 times.? I etched with vinegar and hydrogen peroxide plus table salt and drilled with a cheap dremel knock off, then transferred the "screen" to the top side.? I get the same results as the bread boarded circuit I posted earlier so I am calling this a reasonable first home brewed board.