Re: Help with DC motor

Use a couple of gears, or maybe a pulley. It's not worth trying to make the
motor run at a different rpm when you can just step up the speed.

Tesla List wrote:

> Original Poster: "Jon Rosenstiel" <jonr-at-pacbell-dot-net>
> Hi all,
> I acquired the following electric motor and was wondering if it could be
> modified for rotary spark gap use, (be persuaded to run at a higher rpm).
> It is a Baldor Spec# 34-4670-1483, 3/4hp at 1750rpm, armature is 90Vdc at
> 7.8A, field is either, (dependant upon wiring configuration), 100Vdc at 0.6A
> or 50Vdc at 1.2A
> The motor is practically brand new, the brushes haven't fully seated yet. I
> haven't tried to run it yet, but I did connect a 6V battery to the field, a
> meter to the armature and gave the shaft a spin. It does generate.
> Thanks, Jon
> Jon Rosenstiel   jonr-at-pacbell-dot-net