Quote Originally Posted by duhvoodooman
Can't hurt to change the buffer trannies, though the pinout on the MPSA18 (which is what I've used in all my TS clones) is different, as you mentioned. Just leave the legs a bit long and bend them around carefully to avoid contact between them, and you shouldn't have any problem. I recently did the same thing to change from higher gain trannies to mid-range ones in another distortion pedal, and it worked fine. I'll be interested to hear if you discern any improvement from the switch.
Thanks, I'll let you know as soon as I make the change - I had to order the MPSA18 online and now it's still on its way, should be here sometime next week I think.

Quote Originally Posted by duhvoodooman
FWIW, my favorite opamp in that circuit (and I've tried a LOT of them) is the TI TLC2272ACP. Seems to strike just the right balance of fidelity and low noise without sounding too antiseptic. Some people swear by the Burr Brown OPA2134A, but I found it a little too hi-fi in that circuit; sounded a little lifeless to me compared to others.
Thanks for the suggestions, I'll hunt around for those and try them out, should be easy enough with the IC socket I've installed...