Arp Odyssey restoration & mods
Info
A MK I (white-face) Arp Odyssey presumably manufactured towards the end of 1973. When I bought it, it was in pretty bad condition internally, so comprehensive repairs were needed. I also chose to re-work the entire audio path whilst at it. Restored to fully functional state late 2007, mods added during 2008, additional repairs between 2010 – 2011.
Work stage posts
Getting started: The PSU connector
Slider cleaning
Keyboard repairs
Triumph over sliders
Board A repairs
Board B repairs
Board C repairs
Fully functional!
Dual VCF
Breakout box
Power supply upgrade
VCF & slider repairs
Pictures
The restored MK I Arp Odyssey
Completed Breakout Box.
9 responses to “Arp Odyssey restoration & mods”
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excellent man! great info,i have a question;what do you use to cleanning?
Thank! Check the work stage posts, they describe everything in detail.
Hi there 🙂 My Oddy, could need that breakoutbox. Can you please tell Me what opamps did you use, since I can’t see it,in your schematics.. All the best from Nick W and Happy new Year
Don’t have my box at hand to check it, but I think I used a generic TL074. Any quad opamp should be fine :)
Super, I will try that. Thx Man and great info Site
Oh man, I’m just starting my own repair of an Arp Odyssey Mk1. Thanks for posting this. I have been documenting my progress as well with photos and notes. So far, I’ve replaced all sliders and will finish replacing all ICs tonight, along with all caps.
Hi and nice to hear that my posts are of help!
I hope you didn’t use those chinese replica sliders; I installed a set on mine and they started acting up about a few years even in light studio use. It’s like the slide range works fine, but many developed issues where the contact between rail & slide broke if the lever moved sideways even the slightest. Try doing smooth VCF fades with all the crackly contact breaks.. *grrrr* :D
So yeah I replaced the replicas about 1.5 years ago with GMUSynth CTS-to-PTL adapter boards and Bourns LED sliders, and these have been rock solid. Those I can totally recommend.
Come to think about it, should perhaps write a post about those too. Still haven’t wired up the LEDs tho..
Hey Arto where did you get the bourns sliders and what was the model number? Thanks!
Hi Scott! The sliders are PTL series, I got mine from Mouser.com