I may be a bit late, but I found a cool OC-2 mod

[Chistopher]

I found a MIJ OC-2 going for $79 at this antique store where I live so I snagged it. Given I don't care too particularly much about resale, I decided to tinker with it a little bit. Probably not too many people willing to do that anymore seeing as it now sells for >$150.

Part of the charm of an OC-2 is that it doesn't really do an 100% perfect octave. It responds instantaneously, but it's got a synthy stuttery effect as a result of the less than perfect tracking. I'm using my 12v model on 9v, so this is probably especially occurant. One of the lesser traits it has is that it's Oct 2 knob is totally useless. Even at full tilt on the higher frets on a guitar it's hard to hear.

So what I did was simply place a wire bypassing the envelope filter and tone filtering sections of the circuit, and now the Oct 2 is a clearly audible, extremely compressed synth sound. It no longer sounds like 2 octaves down but instead 1 octave down. Essentially I now have an analog octave down pedal and an octave fuzz in the same box.

My box isn't labeled so I don't know the exact places to do it, but I'll draw a quick little MS Paint drawing later, from that it shouldn't be too hard to figure out.

I haven't tried it on bass yet, but as of now on my guitar it's loaded with sputtery fuzzy goodness.

 

[Chistopher]

Attach this wire to the lug closest to the middle of the board on the Oct 2 pot

 

[jeremy]

interesting. i really like my oc2, even with its quirks, and prefer it over the oc3 by a ton. love the synthy quality it adds to solos in the right circumstances. i dont love the bypass so it and an sd1 are in true bypass loops to keep em out of the signal chain when not in use.