With all the amazing builds I've seen on this forum I'm almost reluctant to post this little circuit in a tiny 1590A, but it's really nice sounding. It's the ROG version of the Range Master, basically a FET based treble booster. Since the drain bias of the FET allows for different sounds, I made a small change to the circuit adding a second trimmer and a switch. In this way I'm able to dial in two different biasing for the FET and get a broader sound spectrum from the same effect without having to open the enclosure.
The PCB is (obviously) from OSHPark, while the first build was on Vero.
One day I'll be able to post audio or video samples, for the moment here's a couple of pictures:
https://drive.google.com/open?id=1ToKCMsHZgK1daGZQ3gIPXvvdDHh3OQWB (https://drive.google.com/open?id=1ToKCMsHZgK1daGZQ3gIPXvvdDHh3OQWB)
https://drive.google.com/open?id=1ZpTcurx7Vt-Zih4XUowIBMdX6YRAe-Lg (https://drive.google.com/open?id=1ZpTcurx7Vt-Zih4XUowIBMdX6YRAe-Lg)
Well done! Looks great