Alt-BEAM Archive
Message #07857
To: beam@sgiblab.sgi.com
From: "johannes urke" j_o_h_a_n_n_e_s_@hotmail.com
Date: Sat, 20 Nov 1999 19:38:30 CET
Subject: [alt-beam] Re: annual beam chat
yes so what do you say?
i will be in the room #beamrobotics
on undernet tomorrow so....
drop by:>
>From: SG
>Reply-To: beam@sgiblab.sgi.com
>To: beam@sgiblab.sgi.com
>Subject: Re: annual beam chat
>Date: Sun, 21 Nov 1999 10:41:06 -0600
>
>yup. Mirc is mucho better.
>also has the option of sending files back and forth in real time.
>if you don't have the program, only takes a few min to dwnload.
>
>-Sparkeeeeeeee
>
>At 03:01 PM 11/20/99 CET, you wrote:
> >hey guys why dont we have the beam chat in an other chat program like
> >mirc???
> >yahoo sucks i cant get in on the club site if there are over three
>people...
> >nobody else i know can either so why dont we have the chat in an pre
> >determined server on mirc lets say undernet and the channel #beamrobotics
> >???
> >mirc can be found at http://www.mirc.com
what do you think?
> >
> >______________________________________________________
> >Get Your Private, Free Email at http://www.hotmail.com
> >
> >
>
______________________________________________________
7858 Sat, 20 Nov 1999 10:48:11 -0800 (PST) [alt-beam] Re: annual beam chat beam@sgiblab.sgi.com Daniel Grace Sorry, maybe I missed it, but is there a time set?
~Daniel
--- johannes urke
wrote:
> hey guys why dont we have the beam chat in an other
> chat program like
> mirc???
> yahoo sucks i cant get in on the club site if there
> are over three people...
> nobody else i know can either so why dont we have
> the chat in an pre
> determined server on mirc lets say undernet and the
> channel #beamrobotics
> ???
> mirc can be found at http://www.mirc.com
what do you
> think?
>
>
______________________________________________________
>
7859 Sat, 20 Nov 1999 20:28:24 CET [alt-beam] Re: annual beam chat beam@sgiblab.sgi.com "johannes urke" yes on sunday all day
>From: Daniel Grace
>Reply-To: beam@sgiblab.sgi.com
>To: beam@sgiblab.sgi.com
>Subject: Re: annual beam chat
>Date: Sat, 20 Nov 1999 10:48:11 -0800 (PST)
>
>Sorry, maybe I missed it, but is there a time set?
>
>~Daniel
>
>--- johannes urke
>wrote:
> > hey guys why dont we have the beam chat in an other
> > chat program like
> > mirc???
> > yahoo sucks i cant get in on the club site if there
> > are over three people...
> > nobody else i know can either so why dont we have
> > the chat in an pre
> > determined server on mirc lets say undernet and the
> > channel #beamrobotics
> > ???
> > mirc can be found at http://www.mirc.com
what do you
> > think?
> >
> >
>______________________________________________________
> > Get Your Private, Free Email at
> > http://www.hotmail.com
> >
>
>
>=====
>ICQ # 39402143
>__________________________________________________
>Do You Yahoo!?
>Bid and sell for free at http://auctions.yahoo.com
______________________________________________________
7860 Sat, 20 Nov 1999 12:53:44 -0800 [alt-beam] Re: Cholroplast thingy "'beam@sgiblab.sgi.com'" Wilf Rigter Hey Craig,
Yep, you have to use low leakage fet input opamps, especially if you use
LEDs for photocells together with small low leakage caps. I would change the
circuit slightly as shown in the attached to improve efficiency (kind of
important with solar engines). With 5V(min) you can easily drive the mosfet
gates. Not yet tested but uses fewer components, lower forward voltage. Note
the 0.001 caps are used with the clear LED type (low sensitivity)
photodiodes for filtering and snappy positive feedback. Exact cap values to
be determined empirically.
regards
Wilf Rigter mailto:wilf.rigter@powertech.bc.ca
tel: (604)590-7493
fax: (604)590-3411
> -----Original Message-----
> From: Maynard [SMTP:cybug@home.net]
> Sent: Saturday, November 20, 1999 9:53 AM
> To: beam@sgiblab.sgi.com
> Subject: Re: Cholroplast thingy
>
> Hi Richard / Wilf:
>
> Since the CSE is good for maintaining a useful minimum voltage ( 5V or so
> )
> I'd suggest you use a pair of good low current op-amps to monitor the
> voltage level of the photodiodes and drive your Darlingtons / h-bridge.
> That's what I did in the Sunflower and Solarfly, and it works quite well!
> The high impedance inputs also cuts the leakage current through the
> darlington base which I think the circuit you use might suffer.
>
>
> I posted the schematics of the solarfly and sunflower on my site at
> http://members.home.net/cybug/solarfly.htm
for you to use if you like!
>
> Craig
>
> ----- Original Message -----
> From: Wilf Rigter
> To:
> Sent: Tuesday, November 16, 1999 10:45 AM
> Subject: RE: Cholroplast thingy
>
>
> This may work but it is untested. The PD or green LEDs act as photovoltaic
> generators and steer the 100K resistor current to the MPSA12 with the
> lower
> light level. Try adding a little positive feedback by crosscoupling the
> collectors to the opposite bases.
>
> Wilf Rigter mailto:wilf.rigter@powertech.bc.ca
> tel: (604)590-7493
> fax: (604)590-3411
>
> <>
> > -----Original Message-----
> > From: Richard Caudle [SMTP:richard@cqc.com]
> > Sent: Saturday, November 13, 1999 10:15 AM
> > To: BEAM
> > Subject: Cholroplast thingy
> >
> > _____
> >
> >
> > Good day, BEAM cats!
> >
> > I'm building some Christmas presents and I've hit a bit of a snag.
> > Attached is the hookup of the thing that I'm working on at the moment,
> but
> > both motors won't run. All that runs is one of them. If I unplug the
> > running one, the non-running one runs. The motors that I'm using are
> from
> > CDROM drives. I think they are the ones that eject the CD. Any
> > suggestions?
> >
> > Richard Caudle
> > www.geocities.com/frankendaddy <http://www.geocities.com/frankendaddy>
> > Home ICQ - Frankendaddy
> >
> > Guardians of the sacred words: Nee, Ptang, and NeeWhon! << File:
> > chloroplast2k.bmp >>
>
7861 Sat, 20 Nov 1999 16:30:12 -0800 [alt-beam] BEAM CHAT ON DALnet "beam list" "Rik" Hey Guys ...
i have #beamrobotics registered on DALnet .... maybe we can do chats
there??
you can log on thru any IRC program (mIRC,pIRCH,etc)
and you can even register your nicknames..so nobody else can have them!
..all for free!!
the command to register your nick once logged onto irc (dalnet connection)
is:
/NickServ REGISTER put password here
im working on setting up a memo service for the channel too .... so we can
leave msg's for eachother.
if you dont wanna download an irc program ... you can also chat via
java --on dalnets homepage
www.dalnet.com
i dont wanna step on anyones toes ... i know a few others have tried to
start up a chat thing .... but i figured since i had the name registerd
already ...and there has been a few ppl in talking thruout the week ...i
just thought i let you all know.
i set this up to talk to my out of state friends about beam stuff ....and to
swap files..etc..cause waiting for sundays was just killing me! :)
anyway .... im usually there ... if ya wanna talk BEAM
Rik
a.k.a MuTaNtb0y
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