On Tue, 4 Aug 2009 10:49:11 -0700 (PDT), N Morrison
wrote:

On Aug 3, 6:51*pm, "Michael Koblic" wrote:

I could find no evidence of a capacitor so shaded pole is the most likely
explanation.

1/4 Hp is VERY large for shaded pole - I'd expect split phase with a
centrifugal starting switch. That's pretty well standard for an
unloaded start application.

Motors up to 3/4 hp were used back in the '30s and '40s. They didn't need a
starting condenser, slip rings or centrifugal switch. They did run hot, but
were often not continuously rated.

I had one on a 1942 drill press.

Mark Rand
RTFM