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Other Vintage Household Electrical or Electromechanical Items For discussions about other vintage (over 25 years old) electrical and electromechanical household items. See the sticky thread for details. |
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19th May 2017, 10:42 am | #1 |
Nonode
Join Date: Aug 2010
Location: Resolven, Wales; and Bristol, England
Posts: 2,612
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Has anyone rewound a Sectric motor?
I have an early Sectric chiming mantelpiece clock which stopped. Upon investigation, one of the connecting leads fell out from the coil of the motor. Unfortunately it was the inner connection!
The wire is 0.002" enamelled copper (47swg?) and the enamel insulation appears to be sound. Given that my other two Sectric clocks have a different style of motor, what's the likelihood that I can unwind the one I have, reconnect the inner wire and rewind it?
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Richard Index: recursive loop: see recursive loop |
19th May 2017, 10:54 am | #2 |
Octode
Join Date: Nov 2005
Location: Surrey, UK.
Posts: 1,874
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Re: Has anyone rewound a Sectric motor?
Rewind with a full bobbin of 30 SWG wire and run the clock from low voltage AC. Use a variac to determine the voltage at which the motor will start, then add 30% to get the running voltage. An old wall wart transformer will power it.
Leon. |
19th May 2017, 11:34 am | #3 |
Dekatron
Join Date: Jan 2005
Location: Oxford, UK.
Posts: 17,861
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Re: Has anyone rewound a Sectric motor?
I'm in the middle of doing a Magneta in the way Leon describes. I will report back when it's done and let you know how I got on.
Re-winding with the original gauge of wire (for direct mains operation) is almost bound to end in tears as it's incredibly thin and fragile. N. |
19th May 2017, 1:51 pm | #4 |
Banned
Join Date: Dec 2013
Location: Middlewich, Cheshire, UK. & Winter in the Philippines.
Posts: 3,897
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Re: Has anyone rewound a Sectric motor?
You would never rewind it with the original reclaimed wire, its too thin to stand unwinding and rewinding.
I find anything much less than 38swg difficult to wind. |
19th May 2017, 4:45 pm | #5 |
Octode
Join Date: Mar 2006
Location: Co. Durham, UK.
Posts: 1,117
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Re: Has anyone rewound a Sectric motor?
If the break is in the first couple of turns, it could be possible to unwind them, and make a new connection to the broken end.
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19th May 2017, 5:08 pm | #6 |
Dekatron
Join Date: Nov 2003
Location: Near Leeds, West Yorkshire, UK
Posts: 4,609
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Re: Has anyone rewound a Sectric motor?
There are at least two members here who will rewind your clock stator with 47 SWG wire.
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Mike. |
19th May 2017, 8:09 pm | #7 |
Nonode
Join Date: Aug 2010
Location: Resolven, Wales; and Bristol, England
Posts: 2,612
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Re: Has anyone rewound a Sectric motor?
As I said in the original post, the break is in the inner connection.
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Richard Index: recursive loop: see recursive loop |
19th May 2017, 8:11 pm | #8 |
Nonode
Join Date: Aug 2010
Location: Resolven, Wales; and Bristol, England
Posts: 2,612
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Re: Has anyone rewound a Sectric motor?
C'mon, name names! I'm up for that.
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Richard Index: recursive loop: see recursive loop |
19th May 2017, 11:23 pm | #9 |
Heptode
Join Date: May 2003
Location: Devizes, Wiltshire, UK.
Posts: 650
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Re: Has anyone rewound a Sectric motor?
Hello Richard,
I can rewind your clock coil. I am regularly asked for exactly this type of rewind and I am only up the road from you in Devizes Wiltshire. I would use new modern wire of the original gauge so that you can run it as original. PM me with you phone number if you are interested. Mike.
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Mike Barker. |