[tekno]

I have made a single sided A3977 board. I used Phil’s schematic to build the board so that his instructions will still work (thanks Phil for answering all my questions). It is kind of big at 100 mm X 140 mm but was build so the hobbyist board maker could etch their own boards. The output traces are to light for the 2.5 amp output but are made so that 18 to 20 ga. solid wire could be soldered on to the traces to carry the load. The board has 4 jumpers that are shown on the top copper mask. I have the top silk. top copper (you don’t really need) and Bottom copper. Plus the board lay out. I think its 100%.


Tek