I don’t really like promoting anything I’m flogging on ebay, but in this case I’m hoping you won’t mind too much? I’ve dug these up in one of my drawers. If there is anyone interested, I’m guessing they’ll frequent this forum.
(Personally I think this forum should have a ‘Sales and Wants’ section anyway?)
Here’s the link:
Please don’t get too upset with this shameless promotion 
so the prototype had black instead of blue around the wheels and display
wonder why they changed it, looks cool
was it black? i think that’s just a poor scan/photo. the blue rules.
its definately black round the wheels and display on the promo pics. ive seen that pic up close before. also theres a black circle round the tuning control on the back.
will have been cheaper to manufacture all in blue rather than blue and black on the one panel me thinks…
anyone know who designed the source, or if there are any pics inside the source anywhere?
I’ve had a closer look at the promo. The two panels with the mod wheels and the incremental control are definately black (when you upload photos using ebay’s system the quality seems to disintegrate). Also the inc. control knob looks like a standard mini-moog type know ie black with a silver cap (when did the big free wheeling monster knob appear? oo-er!)
The promo also has the words ‘Preliminary Specification February 1981’ on the bottom, does that mean it’s even rarer and hugely valuable? 