Alt-BEAM Archive
Message #08246
To: beam@sgiblab.sgi.com
From: Timothy Flytcher flytch@hotmail.com
Date: Mon, 13 Dec 1999 18:42:10 -0500
Subject: Re: Batteries
> I like the Ni-cad 9v remove the case and I get seven neat little cells
about
> 2/3 of an N cell... I have found these to be very reliable and true to the
> claimed capacitance... I have used these in my hand launched R/C gliders
for
> the last 12 years... voltage is not a problem as you can make up whatever
> you want for cell count (1.2v/cell) ... I have not yet tried the Hydried
> cell yet but would like to :) maybe next summer???...
>
> Dumb question??? what happens if I replace the cap in a solar engine with
a
> small Ni-cad cell??? I have wanted to try this but have yet to sacrifice
one
> of my packs...
>
>
> >I wanted to poll everyone and see what you use when you need batteries in
> >an
> >application. I've grown quite tired of AA's because of their size, but I
> >can't seem to find any that last as long and are as cheap to replace.
> >
> >I've been looking at the smaller Lithium photo cells, but they're too
> >expensive to not be rechargeable. And I *would* use a normal 9V, but
> >that's
> >overkill on the voltage side of things. I'm looking for a small but
> >long-lasting 6V source.
> >
> >Any ideas?
> >
> >
> >have fun,
> >
> >phillip
> >
>
> ______________________________________________________
>
8247 Mon, 13 Dec 1999 23:52:11 GMT [alt-beam] Re: Batteries beam@sgiblab.sgi.com "Mike Kulesza" Surplus 6V camera batteries for $1 CAN...
>From: "Phillip A. Ryals"
>Reply-To: beam@sgiblab.sgi.com
>To: "Beam@Sgiblab. Sgi. Com"
>Subject: Batteries
>Date: Mon, 13 Dec 1999 12:34:23 -0600
>
>I wanted to poll everyone and see what you use when you need batteries in
>an
>application. I've grown quite tired of AA's because of their size, but I
>can't seem to find any that last as long and are as cheap to replace.
>
>I've been looking at the smaller Lithium photo cells, but they're too
>expensive to not be rechargeable. And I *would* use a normal 9V, but
>that's
>overkill on the voltage side of things. I'm looking for a small but
>long-lasting 6V source.
>
>Any ideas?
>
>
>have fun,
>
>phillip
>
______________________________________________________
8248 Mon, 13 Dec 1999 17:13:26 PST [alt-beam] Re: Batteries beam@sgiblab.sgi.com "Timothy Flytcher" yes... and yes...
yes they are spot welded with tabs... and yes they can be soldered I cut the
tabs in have and use this to solder to... in all my applications the spot
welds are efficient enough :)
Timothy...
>I forgot about those! I took one apart when I was about 10 (quite some
>time
>ago:) and forgot until you mentioned them. I might try that. It's been
>forever, but I was thinking they were spot welded together. Is that right?
>Do they take to solder well?
>
>I like the Ni-cad 9v remove the case and I get seven neat little cells
>about
>2/3 of an N cell... I have found these to be very reliable and true to the
>claimed capacitance... I have used these in my hand launched R/C gliders
>for
>the last 12 years... voltage is not a problem as you can make up whatever
>you want for cell count (1.2v/cell) ... I have not yet tried the Hydried
>cell yet but would like to :) maybe next summer???...
>
>Dumb question??? what happens if I replace the cap in a solar engine with a
>small Ni-cad cell??? I have wanted to try this but have yet to sacrifice
>one
>of my packs...
______________________________________________________
8249 Mon, 13 Dec 1999 17:24:32 PST [alt-beam] Re: Batteries beam@sgiblab.sgi.com "Timothy Flytcher" Hold up a minute Jim, are we talking about replacing the cap with a nicad
cell *or* charging the cell with the solar panel then the Ni-cad battery
charging a cap to run the engine???
>The Solar Engine would always be "open", depending on the 1381 voltage
>trigger level, and the number of cells. It probably wouldn't even trigger
>on one cell. This could however be a good thing. I think the 1381's go up
>to like 4 volts. Would be interesting to see the effects of a SE or even a
>chrloroplast. Adjusting the triggering voltage could be controlled by
>lighting conditions, running more off the battery in the dark, and just
>soaking in the rays in the higher light. Essentially charging the
>batterys.
>The delema is then how to adjust the triggering voltage. It would seem
>almost impossible with a 1381, and I haven't looked to much at a
>cholorplast. (maby a good exuse to try one)
>
>
>
>
>James Taylor
>URL: http://fly.to/springmeadows
>
>----- Original Message -----
>From: Timothy Flytcher
>To:
>Sent: Monday, December 13, 1999 4:28 PM
>Subject: Re: Batteries
>
>
> > I like the Ni-cad 9v remove the case and I get seven neat little cells
>about
> > 2/3 of an N cell... I have found these to be very reliable and true to
>the
> > claimed capacitance... I have used these in my hand launched R/C gliders
>for
> > the last 12 years... voltage is not a problem as you can make up
>whatever
> > you want for cell count (1.2v/cell) ... I have not yet tried the Hydried
> > cell yet but would like to :) maybe next summer???...
> >
> > Dumb question??? what happens if I replace the cap in a solar engine
>with
>a
> > small Ni-cad cell??? I have wanted to try this but have yet to sacrifice
>one
> > of my packs...
> >
> >
> > >I wanted to poll everyone and see what you use when you need batteries
>in
> > >an
> > >application. I've grown quite tired of AA's because of their size, but
>I
> > >can't seem to find any that last as long and are as cheap to replace.
> > >
> > >I've been looking at the smaller Lithium photo cells, but they're too
> > >expensive to not be rechargeable. And I *would* use a normal 9V, but
> > >that's
> > >overkill on the voltage side of things. I'm looking for a small but
> > >long-lasting 6V source.
> > >
> > >Any ideas?
> > >
> > >
> > >have fun,
> > >
> > >phillip
> > >
> >
> > ______________________________________________________
> > Get Your Private, Free Email at http://www.hotmail.com
> >
>
______________________________________________________
8250 Mon, 13 Dec 1999 20:27:37 -0500 Re: BEAMjet beam@corp.sgi.com owner-beam@sgiblab.sgi.com [mailto:owner-beam@sgiblab.sgi.com]On
[Quoting from different posts]
>It's a curious thing to note however, that the BEAMERs on this list
>have already come up with a fair amount of stuff. The whole blimp idea
isn't
>exactly new.
I didn't mean vague concepts of means and motion, unformed ideas (eg
blimps, jets) etc, but the more detailed description of mounting an SE
on an arm, making that arm into a mobile, putting a propellor on the SE
such that it imitates flight when triggered, and dressing the whole
thing up as a Fokker . That's specific enough to be a
reasonably distinctive description. If he was talking about dressing it
up as a bird that flaps its wings when triggered, despite being almost
the same idea, it wouldn't be construed as the source of my design. But
yes - that someone thought of something so similar indicates it may be a
more obvious concept than I took it for. Either that or BEAM attracts
people who think very much like me. Me for example... :-)
>Ideas are good. Ideas start the process. But, a finished, beautiful
>prototype is the real meat and potatoes.
I agree. Ideas are almost worthless when you always have at least ten
great ideas in the space of time it takes to bring just one of them into
the world. For this reason, there is little incentive to act on someone
else's ideas while your own accumulate dust. Thus continuously acting
only on other peoples ideas is often symptomatic of either lack of
creativity or low self esteem (or that you're employed :). So when I
post to say "yeah - I also thought of that", I'm not saying "Heap glory
upon my manly form for my ideas are as gifts from god", I'm checking
possible misrepresentation of how I usually build things. It's not a big
thing, but it's nicer to have it correct rather than mistaken :-)
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