470/100 caps (was Suitable Cap for Gecko's was Re: 8-wire 1/2coil stepper?

Hi Alan,

I assumed that the cap on the power input to the Gecko was just to
stop the current/voltage from dropping due to the output and distance
from the power supply.

if that is all it is doing, then won't just about any style cap do ?

I know very little about the differences, but thought the lower
leakage offered benefits to microprocessors and analogue measurement
and circuits that measured voltage. Doesn't the Gecko have an on-
board voltage regulator so once the power is applied, it has to drop
to like 7 volts before logic circuits start to get bored and stop
working?

Dave

--- In CAD_CAM_EDM_DRO@y..., Alan Marconett KM6VV <KM6VV@a...> wrote:
> Hi Dave,
>
> Thanks, I did something similar. Only I looked for low-leakage
caps. I
> think we want a better cap then a cheap electrolytic (Tantalum low
> ESR's, I think). I couldn't remember the "low ESR" last time I
posted.
> All I found were 6v caps. Otherwise, I'd have a bag of 'em!
>
> Alan KM6VV
>
>
> turbulatordude wrote:
> >
> > Hi Alan,
> >
> > I did a search on Digi-key for capacitors and a matrix came up. I
> > put in 470 and 100 volts and found caps of that value. they were
> > about $2.70 or so. (at least the one I found was)
> >
> > Jameco lists electrolitic caps of 470uf/63v for $0.25 each in
lots of
> > 10, or 29 cents each for one. none of higer voltage.
> >
> > Mouser lists the 470/100 for $1.98 on last years CD.
> >
> > Dave