Roger Manning of the Moog Cookbook, Jellyfish and Imperial Drag recently had these on the bay. I pulled them up and saved them for posterity. Thanks to Martin for sending this my way.
Arp Quadra
Arp Odyssey Pics SN 0300
Moog Sonic Six
Moog Opus 3
Moog Source SN 4373 B
Moog Opus 3 Mods:
The pitch wheel was replaced with a custom-made clear wheel, lit by a Forest Green high intensity LED.
The LFO was modified to go both faster and slower than stock.
It can go so fast at maximum, that audio rate FM'ing is possible with the pitch or filter.
Its LED was changed to violet, as well.
Arp Odyssey style "gel cap" slider caps were added in the same Opus 3 color scheme.
Additional 1/4" input jacks have been added.
1. VCF Audio input
2. VCF CV input
3. Chorus/Delay Audio input
4. Envelope/LFO delay Gate input
These inputs allow external sounds to be processed through the Moog filter and analog delay sections.
The filter can be swept or modulated externally now.
An analog sequencer controlling the filter while playing organ chords is amazing, btw. : )
Finally, a gate input (standard V-trig) allows the unit to be used as a triggerable unit for external processing.
The external gate will trigger the envelope generators and the LFO delay.
