Alt-BEAM Archive
Message #00556
To: mikemorrison@home.com
From: Benjamin Edward Hitchcock beh01@uow.edu.au
Date: Thu, 18 Feb 1999 11:56:56 +1100 (EST)
Subject: [alt-beam] Re: Solar Roller
The internal resistance of the cap is too high. Try a gold cap, or get a
couple of caps in parallel. Of course, you could try modifying the the
circuit to hold the latch state, but that takes a bit more talent.
Ben
> I had this same problem too, don't know what to do yet. 8-)
>
> Chris Daniel wrote:
>
> > I've built a solar roller, but all it does is buzz when it reaches the
> > trigger voltage (2.27V). If I short the motor to ground very quickly
> > then it fires properly, and also, if I give the motor a quick spin (in
> > the appropriate directio :) with my fingers then it fires. Any ideas?
> > I'm using a 0.033uF cap with a 2.7V @ 16mA solar cell. I remember
> > someone else had a similar problem recently.
> >
> > Thanks
> >
> > Chris
> >
> > ______________________________________________________
> >
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