IBM ibm international clock model 25-7

james o'mara

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004.JPG 002.JPG 003.JPG hi can any one help me I recently bought an Ibm international clock model No 25-7 this my first electric clock. do you just fit a plug and throw the switch or am I missing some parts I am more use to repairing 18th and 19th century long case clock so i am at a bit of a lose with this one .
 

JTD

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Sep 27, 2005
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Welcome to the board.

You might find it better to post this enquiry in the Electric Horology section.

A moderator can move this for you and I am sure they will do so if they consider it desirable.

JTD
 

leeinv66

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You are right JTD. I'll move this to the Electric Horology forum.
 

james o'mara

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hi can any one help me I recently bought an Ibm international clock model No 25-7 this my first electric clock. do you just fit a plug and throw the switch or am I missing some parts I am more use to repairing 18th and 19th century long case clock so i am at a bit of a lose with this one .

004.JPG 002.JPG 003.JPG 001.JPG
 

JTD

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You are right JTD. I'll move this to the Electric Horology forum.
Thanks Peter - but now I see the OP had posted in Electric Horology as well, so we have a double thread! Could you amalgamate them to save confusion?

Thanks.

JTD
 

Jim Hartog

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Hello James,

I just found this guy on YouTube via a response to a question I had re an IBM 35-7. He has other videos, too. The link covers yours, I believe. He has a business restoring master clocks.


Jim
 

leeinv66

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Thanks Peter - but now I see the OP had posted in Electric Horology as well, so we have a double thread! Could you amalgamate them to save confusion?

Thanks.

JTD
Done :)
 

Edwardo

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Your clock needs a 24vdc power supply and originally ran with an external control box

It can be easily converted to run by itself with an small wiring modification

Can you post a photo of the connections on the top of the clock so I can suggest a solution
 

Edwardo

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The wiring should be terminated at the top of the case

Someone has hacked it

Try connecting 24vdc to the red and black wires

Swing the pendulum and every 1 minute a contact on the top left will close and fire the wind magnet

If this happens all you need to do is wind the clock manually and it should stay wound

Let me know
 

james o'mara

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hi edwardo just to let you know stuck a 24vdc transformer on and yes it will
now winds the clock but their is a mechanical issue with the movement so
it's not running yet but I will work it out hopefully. will keep you posted