Quick test seems to be 2000rpm at about 111v
.4ft-lbs per amp. (8ft-lbs at 20a) On Wed, Nov 10, 2021, 9:07 AM Jon Elson <el...@pico-systems.com> wrote: > On 11/9/21 8:46 PM, Sam Sokolik wrote: > > Anyone have specs on this brushed servo from the 70's? > > > Arrgh! These Gettys motors were designed to use power > transistors from car radio speaker amplifiers, so very low > voltage and LOTS of amps. They used positive and negative > power supplies, and about 20 transistors in parallel from > each supply to the motor. Stuart Stevenson's 5-axis > Cincinnatti mills used those. The servo amps took up 3 feet > of vertical rack space EACH! I think you can tell this > series of motors because they have EIGHT brush caps on > them. I think the rating is something like 12 V at 80 A > continuous. > > Jon > > _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
