The Talking Machine Forum — For All Antique Phonographs & Recordings

It is currently Sun Feb 25, 2018 1:32 pm

All times are UTC - 5 hours [ DST ]




Post new topic Reply to topic  [ 14 posts ]  Go to page Previous  1, 2
Author Message
 Post subject: Re: Victor Credenza Induction Motor Coil Rebuild
PostPosted: Tue Feb 13, 2018 11:09 pm 
Offline
Victor III
Joined: Thu Sep 25, 2014 4:25 pm
Posts: 554
Location: North Central Iowa
On the later motors, they put a capacitor in the circuit. Doesn't that help the motor run a little better as well? I know this RE-75 I am working on has one in it, but other than that, the motor looks identical to the induction motors I've seen in all the earlier machines.


Top
 Profile  
 
 Post subject: Re: Victor Credenza Induction Motor Coil Rebuild
PostPosted: Wed Feb 14, 2018 2:26 pm 
Offline
Victor IV
Joined: Mon Aug 24, 2009 3:08 pm
Posts: 1742
Location: Harrison Township, MI
EarlH wrote:
On the later motors, they put a capacitor in the circuit. Doesn't that help the motor run a little better as well? I know this RE-75 I am working on has one in it, but other than that, the motor looks identical to the induction motors I've seen in all the earlier machines.


I'm not an "electrical guy" but I'm assuming that the capacitor may reduce/filter the AC hum that these motors can produce.


Top
 Profile  
 
 Post subject: Re: Victor Credenza Induction Motor Coil Rebuild
PostPosted: Fri Feb 16, 2018 2:14 pm 
Offline
Victor O
Joined: Sat Jul 05, 2014 2:26 pm
Posts: 53
Location: North central Oklahoma
JerryVan wrote:
EarlH wrote:
On the later motors, they put a capacitor in the circuit. Doesn't that help the motor run a little better as well? I know this RE-75 I am working on has one in it, but other than that, the motor looks identical to the induction motors I've seen in all the earlier machines.


I'm not an "electrical guy" but I'm assuming that the capacitor may reduce/filter the AC hum that these motors can produce.


Later motors are usually a split-phase motor (usually permanent split capacitor) and the capacitor is needed to generate starting torque.

Later they went to shaded-pole motors for most inexpensive players and changers, and these have no capacitor at all.


Top
 Profile  
 
 Post subject: Re: Victor Credenza Induction Motor Coil Rebuild
PostPosted: Fri Feb 16, 2018 2:53 pm 
Offline
Victor III
User avatar
Richards Laboratories http://www.richardslaboratories.com producing high quality cylinder blanks
Joined: Fri Mar 25, 2011 11:28 pm
Posts: 672
Basically, if it runs ok without heating up
excessively and smoking, leave it alone and use it.

If it heats up, smokes, and then self-destructs
in a glorious plume of the magic smoke, then
rewind it.
"Sustained success depends on searching
for, and gaining, fundamental understanding"

-Bell System Credo


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 14 posts ]  Go to page Previous  1, 2

All times are UTC - 5 hours [ DST ]


Who is online

Users browsing this forum: Baidu [Spider], Bing [Bot] and 8 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group
Americanized by Maël Soucaze.