470/100 caps (was Suitable Cap for Gecko's

Hi Tim,

Good point! My drives run fine now without the additional cap (40v
2a). I may have incorrectly ascribed an ESR cap to the job, insofar as
I can't find the original reference. The fuse would seem indicate the
use of the cap also. Eventually I'll go to a higher voltage, so this
would be "proactive insurance".

The 100v 100uf electrolytic low ESR caps (Xicon from Mouser) I did
finally find are only $1.34 qty. 10, so I can afford a few.

Alan KM6VV


Tim Goldstein wrote:

>
> Me thinks that this is well into the realm of the manly art of severe
> overkill.
>
> The cap that is already on the drive and plenty adequate if your wires are
> short, you have no fuse, and you are only running 3 amps or less is just a
> lowly 100 uf electrolytic. The manufacturer recommendation which is proven
> to be plenty successful is to add a 470 uf electrolytic. Now you want to
> start putting in low ESR and tantalum caps. What's the point and what do you
> think it will do that the 470 uf electrolytic will not other than help empty
> your wallet?
>
> Throw on a 470 uf 100 v electrolytic and be done with it. The drive will
> work wonderfully.
>
> Tim
> [Denver, CO]6VV