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Need speed coil for R & M List 2610  Rate Topic 
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 Posted: Sun Feb 7th, 2021 12:18 pm
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David Kilnapp
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Hi Guys. Picked up an R & M List 2610 with a fried/burnt speed coil. Would like to find a replacement before I send it off to Rick Huckabee for a rewind. Anyone got one that they would part with?

The rest of the fan is coming along but it's no good without a good choke coil.


Repainted the badge and motor tag too



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 Posted: Sun Feb 7th, 2021 05:09 pm
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Dave McManaman
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Hi David. Don’t know if there’s a difference but you posted for a 2610 coil and the fan is a 2410. May be the same but wanted to help avoid any problems. Good luck, it’s looking nice!

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 Posted: Sun Feb 7th, 2021 05:25 pm
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Steven P Dempsey
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same coil - - I thought we were using those bridge rectifier diodes to bypass bad coils? I have a pile of them if anybody needs them - - got 300 when I ordered 30

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 Posted: Sun Feb 7th, 2021 05:45 pm
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David Kilnapp
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I must be losing my mind. Yes of course you are correct. Fat fingers can't type I guess

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 Posted: Sun Feb 7th, 2021 05:46 pm
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David Kilnapp
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Steve:  How do I use a diode to bypass the bad coil? Sounds like an interesting solution. How does that work exactly?

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 Posted: Sun Feb 14th, 2021 06:27 pm
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Malcolm MacGregor
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David,About 40 years ago my wife came home after visit antique stores and came home with a 2410. I remember because she wouldn’t carry it in, I had to get it. Back then I liked fans but was busy working and other stuff. So I sprayed the blades gold and the fan black. It stayed that way until last year about this time. As Covid spread and staying at home was encouraged, (I’m retired now) I started restoring the fans I have.  So it got a complete facelift. Photo to follow 

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 Posted: Sun Feb 14th, 2021 06:36 pm
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Malcolm MacGregor
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David, I’m not equipped to polish brass, no buffing wheel here.  I found a plater/polisher locally and he did the brass work. He didn’t know to save the black features of the badge and motor tag. But it has all 3 speeds and runs very good. Enjoy your 2410. I did all the other elements of the restore 

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 Posted: Sun Feb 14th, 2021 06:40 pm
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David Kilnapp
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Looks pretty nice to me Malcolm. Painting badges and motor tags is not terribly difficult. It takes patience but you can do it if you’ve a mind to do it.

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 Posted: Mon Feb 15th, 2021 12:57 pm
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David Hoatson
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What makes you feel the coil is fried?
Often, R&Ms get dirty connections where the coil wires connect to the switch. I remove the nuts and washers, and polish them or sand them with fine sandpaper until shiny copper. Then, straighten the coil wire loops that went around the switch screws, sand the wires until shiny, and reassemble. 

You can re-lacquer the coil by giving it a heavy spray of clear Sprayon electrical varnish. You can also put a wrap of cloth electrical tape (friction tape) around the coil and varnish it again. 

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 Posted: Mon Feb 15th, 2021 02:26 pm
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Steven P Dempsey
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diode bypassing coil - - I have been tossing in a few with every fan/parts order I send out






Attached Image (viewed 121 times):

2840 switch.jpg

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 Posted: Mon Feb 15th, 2021 02:26 pm
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Steven P Dempsey
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This was for a 2 speed fan, not sure about the larger 3 speed models

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 Posted: Mon Feb 15th, 2021 04:17 pm
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David Kilnapp
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Hi Dave. That's exactly what I did. I re-insulated the coil. I'm getting good separation between high and low but not much difference between medium and high.

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 Posted: Mon Feb 15th, 2021 06:00 pm
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David Hoatson
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David Kilnapp wrote: Hi Dave. That's exactly what I did. I re-insulated the coil. I'm getting good separation between high and low but not much difference between medium and high.
Sometimes old fans do this. Some blame it on higher voltages (120 vs 110).

Some guys rewind speed coils with extra turns to make the speeds more distinct. 

If you like your fan to run super slow, you can run it off of a KB speed control. Early (non capacitor) AC induction motors can’t be slowed down very well with just a speed coil.


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 Posted: Mon Feb 15th, 2021 08:03 pm
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David Kilnapp
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Thanks Dave. I'm familiar with KB Electronics. I bought a pretty terrific VFD from KB (Model # KBDA 24D).

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 Posted: Mon Feb 15th, 2021 09:46 pm
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Lane Shirey
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Steven P Dempsey wrote: diode bypassing coil - - I have been tossing in a few with every fan/parts order I send out






That’s a nichrome resistance coil for DC or Universal brush motor, not the Inductive choke coil that Dave has. 

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 Posted: Mon Feb 15th, 2021 10:17 pm
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Russ Huber
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Lane Shirey wrote: Steven P Dempsey wrote: diode bypassing coil - - I have been tossing in a few with every fan/parts order I send out






That’s a nichrome resistance coil for DC or Universal brush motor, not the Inductive choke coil that Dave has. 

I can validate your claim, Lane. That switch image is mine.  :D

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 Posted: Mon Feb 15th, 2021 10:24 pm
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Steven P Dempsey
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OK, thanks - - I use VARIACS to slow down fans when needed.

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