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-   -   Mains synchronous clock movement (https://www.vintage-radio.net/forum/showthread.php?t=141150)

yesnaby 7th Nov 2017 11:28 am

Mains synchronous clock movement
 
Hello,

My mains synchronous clock (made in woodwork class half a century ago) has stopped working. I think the motor coil has gone open circuit.

There is only one place that sells the motor, but unfortunately they are trade only!

See

https://www.cousinsuk.com/product/ma...ous?code=M7814

Note: this has to fit a panel 11 mm thick, there are other ones I can get for a 5 mm panel: however, the construction of the clock makes these unusable.

Perhaps I could have the coil rewound? But there may be other problems with the motor, is it worth the risk?

Or could I find a friendly clock repairer who could order for me?

Michael

Nickthedentist 7th Nov 2017 11:43 am

Re: Mains synchronous clock movement
 
I'm sure Ed Dinning could re-wind it for you.

Or you could re-wind yourself using thicker wire and power it from a small step-down transformer: http://sound.whsites.net/clocks/ocm.html

Quote:

Originally Posted by yesnaby (Post 989335)
Or could I find a friendly clock repairer who could order for me?

I order from Cousins from time to time, though I tend to wait for the shopping list to get quite long to make the postage charges worthwhile. AFAIK, the most relevant part of their "trade only" policy is that you can't return goods ordered in error like you can usually with mail ordering.

Could you post a pic of the motor you currently have, please?

Nick.

yesnaby 7th Nov 2017 11:47 am

Re: Mains synchronous clock movement
 
Hello Nick,

For Cousins, when you register with them don't you have to confirm that you are in the trade?

Michael

PS Sorry Nick, photo coming asap.

yesnaby 7th Nov 2017 11:57 am

Re: Mains synchronous clock movement
 
3 Attachment(s)
Photos as promised

M0FYA Andy 7th Nov 2017 12:07 pm

Re: Mains synchronous clock movement
 
Did CE marking exist half a century ago?
Andy

yesnaby 7th Nov 2017 12:11 pm

Re: Mains synchronous clock movement
 
You are right, this is a replacement movement! Must be 20 years old though I can't remember exactly.

mole42uk 7th Nov 2017 12:29 pm

Re: Mains synchronous clock movement
 
We have a Cousins account, we have to place an order most weeks.

Boater Sam 7th Nov 2017 1:55 pm

Re: Mains synchronous clock movement
 
CE marking started in 1993 replacing the EU mark.

Hampus 7th Nov 2017 2:44 pm

Re: Mains synchronous clock movement
 
Quote:

For Cousins, when you register with them don't you have to confirm that you are in the trade?
Yes you have to, but that is just a checkbox you have to tick... No proof is requested. It is only a matter of honesty ;D I have bought stuff from them several times and I am not in the trade.

Herald1360 8th Nov 2017 1:03 am

Re: Mains synchronous clock movement
 
And presumably you don't have to say exactly what trade you're a member of....... you're a "restorer"- a perfectly good trade!

Phil G4SPZ 8th Nov 2017 9:42 am

Re: Mains synchronous clock movement
 
H S Walsh are another supplier who come recommended:

https://www.hswalsh.com/categories/mains-synchronous

Brigham 8th Nov 2017 9:50 am

Re: Mains synchronous clock movement
 
Can we have a pic. of the clock?

yesnaby 8th Nov 2017 9:53 am

Re: Mains synchronous clock movement
 
Herald1360: Good point!

Phil: Unfortunately neither the CM310 nor the CM311 is suitable.

The CM310 has a maximum panel thickness of 5 mm whereas mine is 11 mm; the CM311 is too big and also has no seconds hand.

Thanks anyway!

The Cousins one (M7814) is now in stock again so I'll try to order from them.

Brigham: Yes, indeed, photo coming this morning.

M0FYA Andy 8th Nov 2017 10:03 am

Re: Mains synchronous clock movement
 
Another approach is to rewind the motor to operate on a low voltage and add a transformer. I've previously linked here to a website which gives details, but I can't spot my posting at the moment. It makes sense because the typical coil for operation at 240v is wound with thousands of turns of fine wire, whereas rewinding for, say, 6 volts means fewer turns of thicker wire, much more manageable.

Andy

Nickthedentist 8th Nov 2017 10:37 am

Re: Mains synchronous clock movement
 
See my link in post 2, Andy ;)

yesnaby 8th Nov 2017 12:06 pm

Re: Mains synchronous clock movement
 
2 Attachment(s)
Photos

Boater Sam 8th Nov 2017 12:11 pm

Re: Mains synchronous clock movement
 
Now that is pretty, and you made this when you were in your crib?

yesnaby 8th Nov 2017 12:26 pm

Re: Mains synchronous clock movement
 
Age 14 I think!

Perhaps it could also do with a set of new hands ....

Nickthedentist 8th Nov 2017 12:28 pm

Re: Mains synchronous clock movement
 
That's a lovely piece indeed, with a classic 1930s look to it.

M0FYA Andy 8th Nov 2017 3:25 pm

Re: Mains synchronous clock movement
 
Quote:

Originally Posted by Nickthedentist (Post 989660)
See my link in post 2, Andy

Oops, I hadn't spotted that you'd already mentioned the idea.

Andy


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