Hello,
I have a Moog Source and am looking for a replacement data wheel… the one that is on a ball bearing shaft. Any leads on a source for my Source?
That’s going to be very very hard to find.
They were made in house.
The only way you’re going to find one is to scavenge a “parts” Source.
Looks like a primitive optical encoder. The one you have might be servicable… I don’t know anything about the Source, but typically that wheel with the opaque stripes spins thru a component called a photo interruptor. There’s an LED on one side, and a photosensor on the other, and when it hits a dark spot on the wheel it interrupts the light path and outputs a digital logic signal. Could just be a component failure causing you trouble(?) (of course the component could possibly be obsolete/rare too…)
(edit: photo w/bogus copyright removed)
Agreed. If the wheel itself is not physically damaged, but is malfunctioning, it’s much more probable that the logic gates chips that receive the digital information (ones and zeros) from it are defective.
It has recently happened to another The Source owner her on this forum, and he had to replace a few logic gates chips before stumbling upon the defective one in the incremental controller section, a SN74LS386 quadruple ex-or gates.
I’m curious why that pic says it’s copyrighted?
I took that photo for an Ebay auction where I sold one.
http://www.minimoog.net/ebay/sourceencoder1.jpg
Sometimes unscrupulous people use public domain (or non-copyrighted) material and unlawfully copyright it for themselves… 
That’s why the pics on my website are marked. I use a lot of my own pics but don’t want lazy sellers using them to sell their own stuff.
http://www.retrosynth.com/~analoguediehard/faq
I “seed” my text so that you can’t use them in auction descriptions without manual editing IE “While its position in the list of top ten fattest analog synthesizers is deserving, so is its reputation of unreliability”. Some idiot did paste my text without editing, and he never got a single bid. Wonder why…
Kevin - here’s the link where I found that photo (the copyright notice shows up when you enlarge it). Said it was from an Ebay auction, which I assumed was theirs because of that! Sorry - didn’t realize it was your photo
http://www.worthpoint.com/worthopedia/moog-source-rotary-encoder-114656760
I don’t care that much about the photo itself.
I was just wondering if some company goes around collecting photos and then “copyrighting” them.