Reilly4

I have fitted 2 Graupner 700 motors in my 1/24 scale MTB and I am looking for help in what RFI suppression components I need to fit to the motors - ie Capacitors sizes etc.
The motors will run at either 9.6 or 12 volts.

Thanks

mfr02

Graupner motors that I have used have come ready fitted. Look at the tags - if there is a small thin wire disappearing into the case alongside each tag, they are already in there, and will become connected when the leads are soldered on.
If you need to fit your own, values are very uncritical - anything between 0.001uF and 0.1uF is OK (look for 0.047uF). They should be RF rated, but ceramic, polyester, polythene are all good. Depends on what is available in the shop. The lowest voltage rating (probably 50) is well in excess of anything we use, so the cheapest will work.
Normal configuration is one direct across the motor tags, some feel the need for one from each tag to the motor body.

Reilly4

Thanks for the advice mfr02. Much appreciated.

I will have a good look at the motors. I did get a friend to buy them in England a few years ago so hopefuuly they will have the suppression fitted.

I bought some 0.047uF capacitors a while back so they should do the job if needed. I also wasn't sure about the smaller ones from the tags to the body.