Alt-BEAM Archive
Message #11873
To: alt-beam@egroups.com; BEAM beam@sgiblab.sgi.com
From: David Simmons devs@idirect.com
Date: Wed, 15 Mar 2000 15:55:19 +0800
Subject: Re: [alt-beam] Strange Caps??
> Ian,
>
> Great little caps, haven't had a chance to use them new yet (my son
> salvages them off motion detectors and the like) but we have had the
> same problem with some circuits on the breadboard. Try a 47uf cap in
> parallel with the .47f cap, and adding a filtering cap at the motor,
> around .1 to 1uf. Someone else may be able to explain why it works--that
> is beyond my scope.
>
> Regards,
> Dave
>
> Ian Bushong wrote:
> >
> > I had breadborded solarengine and some strange things happened. I just
> > ordered some .022F and .047F caps rated at 5.5V from The Electronics
> > Goldmine. http://www.goldmine-elec.com.
The 0.022's are made by NEC and
> > are labeled FYD and have 264 and F8 running along the side (this
probably
> > isn't useful but....) and the 0.047's are made by Tokin, and have FYL
and
> > 118 and I0 or J0 (its hard to read). Anyways, when I charged up the cap,
> > it would get about to the 1381 trigger voltage, and then the motor would
> > make a soft humming sound. Depending on how close I put my 100W light,
the
> > humming would get higher pitched, or lower. About twice, I could get the
> > .047F cap to work, but none of the others did. I am sure it is not the
> > motor, and I tried replacing the cap with one that I knew worked, and
the
> > SE ran fine. So are these Cap's as bad as the Shack's or what??
> >
> > PS: I got some junked solar powered yard light that have photoresistor,
> > NiCad's, and solar cells (duh!). However, the cells are covered in a
thin
> > epoxy or some clear rubbery stuff (like my technical descriptions?). It
> > doesn't peel off very easily. Any ideas on how to get it off? or is it
not
> > worth the trouble?
> >
> > Thanks for the help in advance,
> > Ian Bushong
> >
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