That's true. Now, it looks like Edison used electric motors before he had LP discs, and then after that time, but not during his LP days!1
I wonder if he used the same motor as did Victor. I never had one of the Victor universal motors, so I never had a way of examining it. The motor was a "universal" motor, meaning that it was a DC design motor that works on AC as well. It operated on 32 Volts, and a resistor bank in the back of the cabinet dropped the voltage from either 110 or 220 Volts for the motor. ----- Original Message ----- From: "Bruce Mercer" <[email protected]> To: <[email protected]> Sent: Tuesday, May 02, 2006 7:49 PM Subject: [Phono-L] Electric Motors In DD machines > > > > >>> >>> ---------------------------------------------------------------------- >>> > > >> Hi Doug, >> >> This is interesting, Edison had the Alva but I have never seen an >> electric >> motor in a DD phono, I never thought of this until your post. >> >> Steve >> >> But Edison had an aversion to electric motors >>>in phonographs, though he could have had them; others did. >> > > Edison electric motors could be found in their Art-case models up to I > think > 1918 or maybe 1916. They were universal (ac/dc) motors of similar type > that > others continued to offer with electric drive. All of them I have heard > were > noisy including the Victors. Not until the quiet induction motor came > along > were they used again in the Edison DD radio/phonograhs as well as most > other > makers, Including Victor. > > Bruce > > > _______________________________________________ > Phono-L mailing list > [email protected] > > Phono-L Archive > http://phono-l.oldcrank.org/archive/ > > Support Phono-L > http://www.cafepress.com/oldcrank >
