You gottum correct. The induction disc motor was a GE product. It operated on the same principle as a watthour meter does. It had a governor to limit its shaft speed to record playiung speed. Its torque was mild, but was boosted with the use of a phase shift capacitor in some applications. This made it possible for that motor to drive the early Victor record changers, and also to pull the turntables with the home recorders that RCA was selling.
----- Original Message ----- From: "Robert Wright" <[email protected]> To: "Antique Phonograph List" <[email protected]> Sent: Wednesday, May 03, 2006 5:42 PM Subject: Re: [Phono-L] Electric Motors in Phonographs > So I'm thinking my Brunswick Panatrope with its noiseless motor bearing > both > GE and RCA markings must've been Induction-type, then. I'm no electrical > engineering guy or anything, and I didn't know another type of electrical > motor ever existed. > > I also didn't know there had ever been a 450 gpi cylinder experiment in > 1899. This is the technical oddity stuff that sends me flying! What all > is > known about it? > > Anyone have any detailed pics of the C-1 or C-2 pickup? Or either > machine, > for that matter? Is there a collection of Edison machine photos online > someone might link us to? > > Great info, Bruce, thanks so much! > > Robert > > > >> As I mentioned elsewhere, every one of the universal motors I've ever > heard >> were noisy things, very noisy. Edison used his own brand of motor and I'm >> not sure what Victor or others used but they were of different design but >> still noisy. It seems like they would have been more of a novelty for the >> wealthy. The Induction motor was a different story. Every one of those > I've >> seen were made by G.E. including those used in Edison and Victor >> machines, >> and possibly others as well. They are noiseless compared to a universal >> motor. I'd be interested to know of any other brands of induction motors >> that were used in machines of the day. >> >> Bruce >> >> >> _______________________________________________ >> Phono-L mailing list >> [email protected] >> >> Phono-L Archive >> http://phono-l.oldcrank.org/archive/ >> >> Support Phono-L >> http://www.cafepress.com/oldcrank >> > _______________________________________________ > Phono-L mailing list > [email protected] > > Phono-L Archive > http://phono-l.oldcrank.org/archive/ > > Support Phono-L > http://www.cafepress.com/oldcrank >
