Hi Al,Thanks for the reply. That made me think back to my original search,
which lead me to believe that a Willcox & Gibbs sewing machine motor was a near
match, however the cost of buying an original Wilcox & Gibbs sewing machine
just to rob the motor seemed to be prohibitive... Thanks to your post, I did a
quick eBay search and found an original Willcox & Gibbs motor by itself about
to end and was able to purchase it for $85 plus shipping. So, I'm willing to
take a chance on it working and if it doesn't, I'll just re-sell it. If it does
work, then I have a backup in case I can't get my original motor working... I
appreciate the offer to take a look at it and may take you up on that, it you
have time. Thanks again, Curt - eMail me at: puzzlerecords(at)outlook(dot)com
> To: phono-l@oldcrank.org
> From: clockworkh...@aol.com
> Date: Tue, 19 Feb 2013 22:30:47 -0500
> Subject: Re: [Phono-L] Turntable Sewing Machine Universal Motor Question
>
>
>
> Many great comments were made while I was away this weekend.
>
> As they say, one picture is worth a thousand words. Your motor is a sewing
> machine motor. I had assumed that the Ferrygraph used an induction motor.
> The sewing machine motor is common and can be found on eBay with some
> frequency. See eBay item #281066725702 for one similar and go to eBay to see
> all of the "sewing machine motors" they have constantly on auction. Just
> search under "sewing machine motors" until you see one like yours though it
> may take some time for the exact motor. See eBay #11014372434 for an example.
>
> Jim, et al., had the right tracks on the universal motor. An open field coil
> (1 of the usual 2) or open armature windings could cause the problem you have
> but bad brushes not making contact is the overwhelming reason for universal
> motor failure. You should disassemble the motor, put the armature into a
> latch chuck, and use an electric armature cleaning tool (never sandpaper) to
> bring the individual contacts on the commutator back to a nice copper shine.
> The brushes should have a solid contact on the commutator for ample current
> to flow. Their condition is of prime importance. High resistance here is
> diagnosed by no torque as you describe.
>
> The way the universal motor works in an Edison phonograph, Alva, or Edison
> Business Phonograph, Ediphone, is to have the AC directly across the motor
> and the induction of the iron and copper coils limits the AC current. For DC
> a series resistor, rheostat in some cases, is the current limiting component.
> Come to think of it, you could buy an Edison Ediphone motor on eBay and if
> it fit that would work for you. However, all that being said, I would hope
> you can get the original motor working. Look in the yellow pages for sewing
> machine repair and call around. If all else fails, contact me to see if I
> have time to look at the original motor.
>
> I love this list for the depth knowledge it has...
> I am always learning something...
> best wishes to all...
>
> Al
>
>
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