Alt-BEAM Archive
Message #10503
To: beam@sgiblab.sgi.com
From: "Dennison Bertram" dibst11+@pitt.edu
Date: Sat, 19 Feb 2000 13:20:23 -0800
Subject: [alt-beam] Re: newbie electronics questions
> i just finished reading the Smithsonian article and have become a BEAM
> believer however my electronics knowledge is not up to speed yet.
thats cool.
>
.
>
> i have some small 3v motors kicking around (i don't know what the
> current draw is) and some small 3v 1.5 ma solar cells with which i would
> like to build some SE.
>
> what rating of capacitor should i be using?
try starting with 4700uf
i am not sure of the
> significace of the farad rating on the capacitor.
Look above.
>
> should the voltage rating on the capacitor be comparable to the motor?
> or should it be greater than the motor's voltage?
>
Eh, I suppose it should be a little higher than the motors voltage, but more
imporantly it should match your solarcell. Either way, any volt cap will do
basically. Try a 5v cap if you can get them. Smaller the better. Take a look
at solarbotics site, they have the 'ideal' components.
Dennison
>
> many thanks
>
> niels walkau
>
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