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Anybody know where I can source one of these?


G+_Zachary McIlvoy
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Obviously there are AC caps.  You can put others values (with => V) in series/parallel to get correct capacitance.  Also I've mainly seen ceramics as AC.  (can't say I've seen or not seen AC electrolytic)

Ceramics might work fine.  Polly/Mylar most likely will, depending upon application.

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I have used non-polarized electrolytic capacitors before. You find them for motors and in audio apps. Here is a 15uF one that might work - it's for audio crossover networks. Even if it's axial, you can convert it to radial with some lead bending and heat shrink tubing. Don't know if the 15uF is critical ... probably not :-)

 

http://www.parts-express.com/15uf-100v-electrolytic-non-polarized-crossover-capacitor--027-344

 

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Can't for the life of my figure out how to add a photo to a comment or post on here... so here is an additional photo: https://goo.gl/photos/otHSsrfiMQtyNHQB8

 

I'm honestly not entirely sure how this circuit works, but I've narrowed it down to this capacitor being the problem by process of elimination. I've never heard of a motor starter but that could be right.

 

In the pic, the plastic-covered wires coming in are a switch, and you see the motor. The black switch is what actually controls the 24v that comes in to the board (not pictured, red 3-pin connector on the board). The switches and power coming in all work, but the motor has stopped moving more than a millimeter or so. When I activate the switch, the motor basically just freezes and provides resistance, but won't move.

 

Thanks for the help all, didn't realize there were so many options here!

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