Power Capacitors
 

How much are power capacitors and where is the best place to look for one?

Hank has em on Hobby Talk.

You can order 10000 uf capacitors from Mouser electronics for about $1.40 each.

I got mine from there, they are about the size ( maybe alittle smaller ) than a cyclone speed control. Works really well.

It depends on the manufacturer of your speedo. Stick with the company that made the equipment they know it best.

What speed control are you running?

I have so far used this capacitor on a GM V8 and a Novak Cyclone Speed control. I have also seen it used on a GT7 as well as an LRP Quantum Competition.