International Mail Service Disruptions
A large number of international shipments have been disrupted by the COVID-19 pandemic. International shipments may experience longer than normal delivery times. Read more…
I'm starting to order parts for a Mach 1 Overdrive (greer lightspeed). Is there a good substitute for the OPA2134? It seems hard to find and expensive... I'm guessing any dual op amp would work, but will this mess with the core sound of the overdrive?
The light speed does have a higher clipping threshold than many overdrive pedals. One direction has 3 diodes in series. So, it may be more sensitive to op amp selection than other circuits since it’s operating closer to the power rails to create clipping. (I haven’t built this one myself, just speculating).
it will certainly work with a tl072 or similar, and the difference may be subtle. Definitely socket it either way so it’s easy to experiment with later if you want. (I prefer socketing all my op amps anyway). Just be sure to use the ones that look like this since they’re more reliable than the other types.