Alt-BEAM Archive

Message #09016



To: beam@sgiblab.sgi.com
From: Wilf Rigter rigter@cafe.net
Date: Mon, 10 Jan 2000 20:10:32 -0800
Subject: [alt-beam] BEAM BIRD



--------------DC70A8307D98A11DF68F7070
content-transfer-encoding: 7bit




Sorry here it is!

wilf

> Hello Scott,

>

> This little circuit uses a piezo speaker to make a wide range of
nice

> warbling songbird sounds with a bit of chaos thrown in to keep things

> interesting. Note the capacitive modulation input to the bicore sound

> generator. The circuit responds to light by changing it's sound repertoire.




--------------DC70A8307D98A11DF68F7070
content-disposition: inline; file
Attachment: C:\TEMP\nsmailUC.gif

--------------DC70A8307D98A11DF68F7070--



9017 Mon, 10 Jan 2000 23:31:47 -0500 [alt-beam] Re: photopopper head? beam@sgiblab.sgi.com Bob Shannon But a photopopper never backs up.

How would the head turn in both directions in this case?

Evan Dudzik wrote:

> it could... should work fine.
>
> --- johannes urke
> wrote:
> > i was wondering since i now have a photovore brain
> > from chiu`s tutorial done
> > if it could be connected to one motor making it a 1
> > dof head?
> >
> ______________________________________________________
> >


9018 Mon, 10 Jan 2000 23:34:54 EST [alt-beam] Re: New(?) FLED variant beam@sgiblab.sgi.com Bumper314@aol.com In a message dated 1/9/00 9:20:22 PM Mountain Standard Time,
ben@wollongong.apana.org.au writes:

I would imagine it isnt just limited to red LED's right

Steve



9019 Mon, 10 Jan 2000 23:39:32 -0500 [alt-beam] Re: parts source beam@sgiblab.sgi.com Bob Shannon Sorry Dave,

I have to strongly disagree. Many motors have much higher efficiencies than
pager motors, but also have flat sides. Motors such as the Mabucci FF-K10WA
for example.

Flat motors simply cannot have the same magnets as cylindrical motors, so the
argument you make is flawed. A better brush can more than compenstate for a
using different magnets.

Dave Hrynkiw wrote:

> At 05:52 PM 1/10/00 , Bumper314@aol.com wrote:
> >yeah but flat sided ness is what some people are really looking for...you can
> >solder to them alot easier...i would go for those if i could build anymore
>
> Flat sides mean that they went cheap on the magnets. They won't have as
> good performance as fully cylindrical motors (assuming same magnets). As
> for soldering on flats vs. cylinders, I'd take better performance anyday
> for the extra effort.
>
> Regards,
> Dave
> ---------------------------------------------------------------
> "Um, no - that's H,R,Y,N,K,I,W. No, not K,I,U,U, K,I,_W_. Yes,
> that's right. Yes, I know it looks like "HOCKYRINK." Yup, only
> 2 vowels. Pronounciation? _SMITH_".
> http://www.solarbotics.com

Home