Pitchmaster SA-60 Guitar Tuner

[Paul Marossy]

I picked up one of these for cheap off Ebay because I was intrigued by it. Cheap "fun" for $18. Just needed a little repair and recalibration. The circuit it uses is rather interesting. Anyone want to take a stab at coming up with a schematic for it? Or know of one that exists? I did some searching and come up empty handed. I started drawing a schematic for it but I am confused by what some of these IC chips are doing, and it's also semi-double sided PCB which makes it more difficult to figure out. I'd post it on my soon to be resurrected website and give you credit for it.

[Paul Marossy]

I have pictures of PCB and I made CAD DWG of them too. They can be found here: http://www.diyguitarist.net/DIYStompboxes/Pitchmaster%20SA-60.htm