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that little motor cap?

Old 04-11-2006, 02:57 AM
infrequent flyer
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Join Date: Aug 2005
Location: Central NY
Posts: 19
Default that little motor cap?

Hello motor-heads!

I'm the new owner of a multiplex space scooter(see space scooter vs. graupner terry thread) and the speed 400 can motor which came with the plane does not have a small capacitor which many motors of this type have. (between the wire connection tabs and the motor case)
Question is - should the motor have one, and if so why and what cap-pacity?

signed: Stymied in Syracuse
spinner is offline  
Old 04-11-2006, 10:23 AM
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Join Date: Oct 2005
Location: N.Staffs, UK
Posts: 2,350

There should already be 2 capacitors fitted, one from each terminal to the case to reduce radio interference. They are often fitted internally.

If you're sure they're not already there then it's worth fitting a couple and possibly also a 3rd across the 2 terminals. All should be somewhere around 0.047uF (microfarad) or 0.1uF ceramic disc capacitors. The value is not critical.

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