[comp.robotics] Lokking

nagle@well.sf.ca.us (John Nagle) (12/21/90)

     The Milton Bradley Big Trak toy, a microprocessor-controlled
tracked vehicle, had a mechanical clutch so arranged that if both tracks
were running at roughly the same speed, they would be locked together,
thus producing straight-line travel.  Perhaps you can find one of those
units.


					John Nagle

nagle@well.sf.ca.us (John Nagle) (12/21/90)

     "Dual Drive, Dual Control Robot Motor", Edmund Scientific part
A31,827.  Was $4.95 each in catalog 8747 (1987).  Contains two 6VDC
150mA motors in a single housing with a magnetic differential coupling.
Edmund Scientific is at 1-609-573-6250.

					John Nagle