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Author
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Topic: PLEEZ, help me fix my changeover!
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Dave Bird
Jedi Master Film Handler
![](http://www.film-tech.com/ubbmembers/490.jpg)
Posts: 777
From: Perth, Ontario, Canada
Registered: Jun 2000
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posted 09-14-2000 11:41 AM
In transit, I must've damaged one of my Simplex changeovers, but the wirings old anyway, so I thought I'd try to fix it. Both coils are shielded from the core, but where to solder the wires? I think the Earth wire (common) attaches to both sides of the middle. This one seems to be soldered directly to the coil. The others (black and red) look to be attached to single strands of coil wire from each end AFTER the coil has been taped. Is this correct? Other tidbits: Right (red) side coil is thinner. Where does the single ball-bearing go? Is the changeover lubricated (or is that just toxic goo)? If so, with what? Thank you. PS- I would've dismantled the other one to have a look, but am having trouble disconnecting the cable from the dowser. ------------------ Dave Bird
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Dave Bird
Jedi Master Film Handler
![](http://www.film-tech.com/ubbmembers/490.jpg)
Posts: 777
From: Perth, Ontario, Canada
Registered: Jun 2000
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posted 09-14-2000 04:25 PM
Thanks guys. I had a nifty picture drawn up (in full colour too), but couldn't figure out how to post it. Oh well. Yes, I have the wiring diagram, but it doesn't quite show where the solders are. Looks to be right to the coil. Gordon, even the common seems to be soldered to the inside of the opening coil (shielded from the actual core of the thing) and then linked by a shielded wire to the inside of the closing coil. But that's the part that's broken, so I just wanted to verify that. Wow, that's never happened to me, when I pulled the top pin - sproing - out comes the spring - and the ball bearing - which I spot bouncing across the concrete - and I'm thinking, oh shit, how many others were there! Cool, only one, I'll have to replace the one in the other machine (and the "ball-point-pen spring) which seems missing. Thanks fellas! Thank you ------------------ Dave Bird
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