I had a PSA-1 too! I had a VT for a while but never cared for the sound.It is! My favorite pedal they ever made, and I've owned a majority of them, and almost all the bass variants (including the PSA-1)
Reverb and Ebay. You can find a mint one for 85-130 or so. I actually wrote tech21 about this, expressing how great and poorly marketed to bassists they are. To me, it's so much better than the VT.
I found an Oxford, hopefully it will get along with my other pedals.
