This has been discussed at the stompbox forum. First, This is NOT yet verified as far as I'm concerned. I haven't built one either since I have my CE-2 clone. The layout is only based from the retrofit's schematic using MN3007 BBD instead of the original SAD512. Suppose, if the retrofit schematic is correct and working, then there is no reason that the layout won't work. By then, build at your own risk!. Pot is 500K reverse log(audio) type. Transistors could be any common NPN's (2N5088, 2N3904, etc).
(PS: May mga follower na din pala ako na taga.PM..pagkakuyaw jud mga bai!..)
Layout Download
