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Post by old-phonographs on Dec 21, 2009 15:20:06 GMT -6
Does anyone have any information on the rather complicated geared switch mechinism on an electric Columbia motor? I have a machine where that mechinism seems to have frozen up which was keeping the motor from running. I took it apart and stared at it quite a lot and cannot even figure out how it works. It has a bunch of gears and a cam that turns the motor off and on. To get the machine working I disconnected the gear attached to the tonearm and rigged a manual switch for the motor. It works great, but I would really like to restore the original switch mechinism if anyone has suggestions or information on it. I have all the original parts, but the switch lost me in the dust. And, I thought Edison made complicated machines! This switch is amazing. Thanks Dan
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Dan G
Two Spring Motor
Posts: 55
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Post by Dan G on Dec 25, 2009 18:49:01 GMT -6
Have you taken a look to see what the material the gears are made of? Depending upon the material (pot metal, etc.,,,) there can be several solutions (or not, depending upon the material).
Dan
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Post by old-phonographs on Dec 27, 2009 17:34:54 GMT -6
All the gears appear to be brass. It is not at all obvious why it isn't working. At least not to me. But, the entire way the thing works is a bit of a mystery to me too.
Dan
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Dan G
Two Spring Motor
Posts: 55
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Post by Dan G on Dec 27, 2009 20:06:26 GMT -6
Could be that something is out of synchronization/adjustment. Can you post a picture of the works in question? I could probably suss it out.
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Post by pianola on Jan 10, 2010 20:11:29 GMT -6
I suspect that your problems are similar to the ones I'm having with my 1919 Columbia electric with the switch built into the tonearm (question and photo posted here). Mine turns on, but then switches off right away. Nothing is broken or missing and nobody yet has offered any potential solutions.
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