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AFCA Forums > Antique Fan Collectors Association > Pre-1950 (Antique) > Westy 803008 Speed Controller Question

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 Posted: Wed Sep 16th, 2020 09:27 pm
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Andrew Sampels
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Joined: Mon Apr 27th, 2020
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I wanted to start by thanking every member of this forum and every AFCA member. All your sharing and information has created another addict.
I am in a battle with a Westinghouse 803008 that I received literally as a pile of parts. I am at the tail end of the restoration and I am missing the wrap count for the speed switch/coil. The tape was removed from the coil and the wires looked like they were either cut or sparked. I am leaning towards sparked. I counted the wraps as close as possible but the numbers were only 0<>9<>18 approximately with 32 AWG. After rebuilding it is not visibly effecting the speed of the fan. So I figure that wraps were missing so my count was off. 

So I figured I would ask if anyone has rewound one, and if they have the count(or the resistance between the coils and I will calculate) before I start guesstimating. I'm trying not to build a heater.

There is a metal tag on the speed controller with the number 653441 on it.

Photos below.



Top after restoration



Bottom after restoration.

Any help would be appreciated and thank you to the community.

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 Posted: Thu Sep 17th, 2020 09:46 am
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Mark Olson
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I may be off base here, but I believe that the speed control coil for that switch would be wound with resistance wire. The reason that I say this is because the switch base is non metallic. A choke would be wound on a magnetically saturable core, or steel lamination stack. This causes the current to be shifted out of phase with the voltage in an alternating current circuit. Unfortunately, I have no idea what resistance values you should shoot for, but I think it would be reasonable to experiment with resistors to come up with speeds that seem appropriate. Use relatively large resistors, say 75 watts, and values less than 100 ohms, say 25 ohms, 50 ohms, 75 ohms and test the fan speeds. Then wind the coil to reflect the chosen resistors. Alternatively, wind a length of resistance wire on a non metallic form, say a porcelain tube, and tap the winding manually to determine what resistances seem appropriate. Be careful, good luck, and keep us posted.

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 Posted: Thu Sep 17th, 2020 01:48 pm
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Andrew Sampels
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Mark,

Thank you so much. That makes perfect sense and I didn't stop to think about resistance wire (especially since there are no choke plates, etc.).

So I am pulling my head out and taking a deep breath. I can see better now.
:D

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