My father (and my self did a few) made a lot of prototype PCB with the toner technique. A trick that I learned from him, was giving a coat of tin alloy to fix a

My father (and my self did a few) made a lot of prototype PCB with the toner technique. A trick that I learned from him, was giving a coat of tin alloy to fix any micro cut made by defects on the copper or the toner transfer.