Bob, Tellef, Paul-
I just joined this website/ forum yesterday, I'm very glad that I came across it as I've had some of these same questions for years. I bought an Arri IIB package in the 90's, it had been used for stop-motion animation, if you can believe it (it required a capping shutter to do so).
It also came with a Cinema Products flatbase sync motor. I don't have it in front of me right now so I may get the details wrong, but the motor that I have does not have a footage counter or an inching knob. It also came with an odd-looking contraption that looks like a wooden pipe with a quarter-inch jack on the end. There is a socket on the flatbase, you plug the "pipe" into the socket and start the motor. It emits a high-pitch whine from a speaker until sync speed is achieved, then it is silent.
Shortly after I got the motor/camera package I opened up the flatbase and saw that the belt that connected the motor to the gear for the camera base had deteriorated into a waxy mess. Very strange. I've been searching for a gearbelt ever since, and I'm wondering if anyone knows of a specialist who might be able to help me. I recently took the motor down to Alan Gordon in L.A. (I'm in the S.F. area) but unfortunately they were closed- it was a Saturday, and I haven't gotten back there. I would rather avoid an L.A. camera shop if I can. I'm also going to be purchasing a 24V (or was it 16V- I had better check!) portable power supply one of these days, and I'm looking for 400ft. mags (I've got three 200ft. mags).
I'm very tempted to buy one of the Tobin motors (they have an ebay "special" going on right now) but I'm hesitant to do so because I know I will never get it into a blimp. At the same time, the effort and expense to get the blimp may not be worth it- it's a conundrum! So I might be interested in selling the flatbase, or trading it for 400ft. mags.
I also have a Mitchell NCR (basically a de-blimped BNCR) with a sync 110 motor, but I use that for animation most of the time.
Webster Colcord
www.webstercolcord.com