• Important Executive Director Announcement from the NAWCC

    The NAWCC Board of Directors is pleased to announce that Mr. Rory McEvoy has been named Executive Director of the NAWCC. Rory is an internationally renowned horological scholar and comes to the NAWCC with strong credentials that solidly align with our education, fundraising, and membership growth objectives. He has a postgraduate degree in the conservation and restoration of antique clocks from West Dean College, and throughout his career, he has had the opportunity to handle some of the world’s most important horological artifacts, including longitude timekeepers by Harrison, Kendall, and Mudge.

    Rory formerly worked as Curator of Horology at the Royal Observatory, Greenwich, where his role included day-to-day management of research and digitization projects, writing, public speaking, conservation, convening conferences, exhibition work, and development of acquisition/disposal and collection care policies. In addition, he has worked as a horological specialist at Bonhams in London, where he cataloged and handled many rare timepieces and built important relationships with collectors, buyers, and sellers. Most recently, Rory has used his talents to share his love of horology at the university level by teaching horological theory, history, and the practical repair and making of clocks and watches at Birmingham City University.

    Rory is a British citizen and currently resides in the UK. Pre-COVID-19, Rory and his wife, Kaai, visited HQ in Columbia, Pennsylvania, where they met with staff, spent time in the Museum and Library & Research Center, and toured the area. Rory and Kaai will be relocating to the area as soon as the immigration challenges and travel restrictions due to COVID-19 permit.

    Some of you may already be familiar with Rory as he is also a well-known author and lecturer. His recent publications include the book Harrison Decoded: Towards a Perfect Pendulum Clock, which he edited with Jonathan Betts, and the article “George Graham and the Orrery” in the journal Nuncius.

    Until Rory’s relocation to the United States is complete, he will be working closely with an on-boarding team assembled by the NAWCC Board of Directors to introduce him to the opportunities and challenges before us and to ensure a smooth transition. Rory will be participating in strategic and financial planning immediately, which will allow him to hit the ground running when he arrives in Columbia

    You can read more about Rory McEvoy and this exciting announcement in the upcoming March/April issue of the Watch & Clock Bulletin.

    Please join the entire Board and staff in welcoming Rory to the NAWCC community.

Kieninger&Obergfell Electro-magnetic clock

jjccamis

Registered User
Dec 15, 2009
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I'll try to be brief. I have the above named clock, magnet through a coil of wire. Cleaning the battery compartment terminals and installing a new battery yielded no positive results. There is a circuit board beside the battery compartment. I realize there are only so many components that can fail. What is the most likely point of failure? If it is the coil, can a replacement coil be obtained and where would I have luck finding one? Can any of you suggest any other troubleshooting measures I might try? The mechanics seem to function properly while the pendulum is swinging before stopping.
JJC
 

Dick Feldman

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Sep 1, 2000
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Re: Kieninger&Obergfell Electro magnetic clock

A picture of your clock will help.

Your post might be better suited for the Electric Horology portion of this board. Maybe a moderator will forward it.

If yours is the style clock I think it is, the response will likely be to find a replacement clock.

Best,

Dick
 

jjccamis

Registered User
Dec 15, 2009
91
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Re: Kieninger&Obergfell Electro magnetic clock

K&O electro mag clock.JPG Here is a pic of the clock in question. You'll have to rotate it. Hope this helps in some small way.
 

Tinker Dwight

Registered User
Oct 11, 2010
13,666
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Calif. USA
I'll try to be brief. I have the above named clock, magnet through a coil of wire. Cleaning the battery compartment terminals and installing a new battery yielded no positive results. There is a circuit board beside the battery compartment. I realize there are only so many components that can fail. What is the most likely point of failure? If it is the coil, can a replacement coil be obtained and where would I have luck finding one? Can any of you suggest any other troubleshooting measures I might try? The mechanics seem to function properly while the pendulum is swinging before stopping.
JJC
The parts on the circuit board are usually not the
issue, it is usually the coil. The older ones use
germanium transistor that would often fail but
these use silicon transistor. Sometimes the electrolytic
capacitors can fail but I'm afraid it is most likely
the coil. There is no replacement other than to wind
another.
I have a failed on as well but I need to figure how
to get it out of the case. I've not tried that yet.
Anyway, you can check the coil with an ohm meter.
Lift one lead and measure it. I don't know what it should
be but I suspect 1K to 2K someplace.
Mine has the germanium transistor built in the coil
so it could be anything.
Tinker Dwight
 

Tinker Dwight

Registered User
Oct 11, 2010
13,666
74
0
Calif. USA
Re: Kieninger&Obergfell Electro magnetic clock

227000.jpg Here is a pic of the clock in question. You'll have to rotate it. Hope this helps in some small way.
My running one is just like that. It is working fine. It is the
oval one that is sick. I've been known to fix these kinds of things
but I need to figure how to open the coil. I'm thinking
heat might do it.
 

shutterbug

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Oct 19, 2005
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Re: Kieninger&Obergfell Electro magnetic clock

This might do better in the electric clock forum. I'll move it over there to see what they can contribute to the conversation. There will be a redirect here for a month too :)
 
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