Induction motors that lack torque can usually be traced to an open field coil
or an open armature loop. A shorted turn will eat torque but the motor will
let you know by getting hot. How about a photo of the motor? Most good motor
shops can fix anything from fractional horsepower to 100 HP.
Al,Thanks for the reply. As you noted, I have been advised that it was a short
in the motor somewhere. The problem seems to be that this motor is wound for
three different types of power - AC/DC and maybe 220. So, either the shops
don't know what the problem is or they just don't want to mess
Check the resister. If its value is too big the motor will slow down
under load.
-Barry
On 2/14/2013 11:23 PM, Vinyl Visions wrote:
I am at my wits end, trying to find someone who can rewind/fix a motor for my Fairy
Phonograph Lamp. What I am considering as a temporary fix (not altering the
The statement ___short in the motor somewhere___ is shop speak that
you don't want to pay what it will cost for us to figure out how to fix
it. What Barry said is where to start. The wiring is a mess as well.
On 02/15/2013 08:15 AM, Vinyl Visions wrote:
I don't know if it's because I am using
OK, if it is a universal motor... where would I find one? Are there any specs
on universal motors - rpms, amps, hp, etc.? This motor is puzzling since it
doesn't have an ID or any spec info.
Date: Fri, 15 Feb 2013 10:04:15 -0600
From: rich-m...@octoxol.com
To: phono-l@oldcrank.org
Subject:
Actually, I found a smaller version of this motor in an early home video
projector. I would have bought it, but it was frozen...
From: vinyl.visi...@live.com
To: phono-l@oldcrank.org
Subject: RE: [Phono-L] Turntable Motor Question
Date: Fri, 15 Feb 2013 11:27:06 -0500
OK, if it is a
The electrical stop will stop the turntable shortly after the last inner
groove, right after the music ends, whereas the regular stop must be set for
the longest record in the collection on shorter records will allow the
turntable to keep turning until this point is reached. By the way, has
I use IE9 and mine all run together as well.
From: vinyl.visi...@live.com
To: phono-l@oldcrank.org
Date: Fri, 15 Feb 2013 09:15:57 -0500
Subject: Re: [Phono-L] Turntable Motor Question
I don't know if it's because I am using Google Chrome, but my posts get run
together. If you copy
The very late electric DDs were probably recorded with a split signal, one for
vertical and the other going to a lateral machine for Needle-Cut discs, so
the shorter playing duration of the latter determined the length of selection.
The longest DD by far that I have is a very early violin
Al didn't say you had a short. He said you had an open. They are
opposites of each other. He only mentioned shorted turns to imply that they
are NOT likely to be the problem.
A broken wire is an open, resulting in zero current. A short is two wires
touching each other, causing the current
On Feb 15, 2013, at 12:04 PM, Jim Nichol wrote:
...shorted turns) means that a few of the loops of wire in the coils are
shorted together, causing the current to bypass them.
The lecture is a good one, especially regarding the importance of appearing
knowledgable (or even better, actually
Universal Motor means that it will run on AC and DC and various voltages.
On 02/15/2013 10:27 AM, Vinyl Visions wrote:
OK, if it is a universal motor... where would I find one? Are there any specs
on universal motors - rpms, amps, hp, etc.? This motor is puzzling since it
doesn't have an ID
He was advised that it was a short. You are correct that the correct
condition condition description is OPEN Circuit. If the fields happen to
be in parallel then that would be where I would start looking.
On 02/15/2013 01:04 PM, Jim Nichol wrote:
Al didn't say you had a short. He said you
Okay, Curt is looking to replace the motor or have this motor fixed if
possible. Can anyone on the list help Curt in maybe fixing the motor so it runs
properly or finidng a replacement motor?
-Original Message-
From: Rich rich-m...@octoxol.com
To: Antique Phonograph List
If this is a Universal motor, it can be easily identified by having carbon
brushes riding on a commutator. A Universal motor is really a DC motor that has
been specially designed to also work on AC. Whereas an Induction motor is
AC-only, and is an entirely different thing (no brushes). Any
Some of these motors have round brushes constructed from tightly rolled
up brass screen. If this motor has that type of brush they are most
likely dirty and oxidized. They are the first thing to check and they
are cleaned by removing and soaking in carburetor cleaner. Do not sand
them or the
Jim Rich,Thanks for the info. My motor is definitely a Universal motor with
carbon brushes. The brushes are in excellent shape and the armature runs true.
The main problem I'm having is shorts, as opposed to opens. The motor runs
until a load is applied, then you can basically shut it down
I believe that's because they were waxing both Needle-Type and Diamond
Discs at the same time, so could only fit what would go on the shorter
Lateral sides.
- Original Message -
From: Jim Cartwright jim...@earthlink.net
. By the way, has anyone noticed that the later diamond
Type: image/jpeg
Size: 31347 bytes
Desc: not available
URL:
http://oldcrank.org/pipermail/phono-l/attachments/20130215/09c25c36/attachment.jpg
___
Phono-L mailing list
http://phono-l.org
19 matches
Mail list logo
