Sam Mims of Syntaur just yesterday posted on the Analog Heaven mailing list that they now have all the old stock of parts from Oberheim/Gibson. I'd definitely check there to see if he has any.
Seth
On Sat, Dec 20, 2014 at 7:38 AM, akva@... [xpantastic] <xpantastic@yahoogroups.com> wrote:
Hi,
Does anybody know, if there are anywhere available spare Xpander buttons, originals or compatible? I might be even willing to trade a CEM3374 or a display for buttons - if sale is not an option.