I seen the Sansamp Classic is back on the market.
I never had it, nor built it. Periodically I search some info about it, and every time I see that the schematic is not accurate at 100%, often it had oscillation problem.
I guess the PCB is design by you.
Do you mind to share the schematic you used? Just if you can! 
Thanks!
The issue with verifying any of the schematics out there is that the boards on the originals were encased in some sort of ceramic/epoxy combo which made non-destructively tracing them impossible so you kind of had to take it on faith. That doesn't seem to be the case with the reissue from the one gutshot I've seen but I haven't really seen anyone poke around in one yet either. FWIW the schematic I used (which came from GilaCrisis on the DIYStompbox forums) only gave me problems when I tried to build it on perfboard and that was almost certainly a result of the multiple long runs of wire in close proximity to each other going to the DIP switch, which is a recipe for oscillation no matter how you slice it and is the primary reason I ended up making a PCB for it. It seems to sound about right based on the demos I've listened to which lends at least some credibility to the accuracy of the schematic, although to be fair I've never had an original or a reissue on hand to compare it directly.
In any case, here is the schematic I found for it originally:
And here is the schematic for my board with a few minor improvements to the power supply and a conversion to true bypass:
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I do feel bad for his employees though, they don't deserve to lose their jobs just because their jerk of a boss couldn't resist running his mouth.
