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See Buchla 219 joysticks. <br>
<br>
<a class="moz-txt-link-freetext" href="http://www.synthtech.com/pix/buchla/b219/b219_joy1.jpg">http://www.synthtech.com/pix/buchla/b219/b219_joy1.jpg</a><br>
<a class="moz-txt-link-freetext" href="http://www.synthtech.com/pix/buchla/b219/b219_joy2.jpg">http://www.synthtech.com/pix/buchla/b219/b219_joy2.jpg</a><br>
<a class="moz-txt-link-freetext" href="http://www.synthtech.com/pix/buchla/b219/b219_joy3.jpg">http://www.synthtech.com/pix/buchla/b219/b219_joy3.jpg</a><br>
<a class="moz-txt-link-freetext" href="http://www.synthtech.com/pix/buchla/b219/b219_joy_light.jpg">http://www.synthtech.com/pix/buchla/b219/b219_joy_light.jpg</a><br>
<br>
you are looking at a light bulb with 4 photo resistors around it. The
stick is attached to a knob that goes on top of the light bulb. As you
lean the stick from side to side it exposes the light to the opposite
photocell.<br>
<br>
As much as Paul S. hates this design, it could be an example of a way
to implement a mod wheel as well. With the exception that this design
uses the light bulbs as the rotating fulcrum, which is not exactly
sturdy. At least there are no pots to get scratchy.<br>
<br>
Mark<br>
<br>
<br>
harrybissell wrote:
<blockquote cite="mid4234B04A.116A3F0A@prodigy.net" type="cite">
<pre wrap="">Good idea, bad implementation.
Don't use reflective mode. The surface of your gradient will always
reflect at LOT of rediation, even when its black.
Put the cell on either side of the wheel, and use a halftone pattern or
just an eccentric cut on the bottom of the mod wheel, so that the shadow of the
wheel shades the cell.
Another solution would be a fabric 'shade' like Morley used in their optical
guitar pedals. The rotary motion of the wheel could operate a little window
shade between the light and the cell.
The mod wheel will be able to respond quickly in the direction of more light
(lower resistance) but more slowly in the other direction
H^) harry
Ray Wilson wrote:
</pre>
<blockquote type="cite">
<pre wrap="">Hi All
I would like to seed a discussion about mod wheels using LED and CS cell.
Check this out and tell me how this might work... or not.
<a class="moz-txt-link-freetext" href="http://www.musicfromouterspace.com/analogsynth/ModulationWheel/ModulationWheel.html">http://www.musicfromouterspace.com/analogsynth/ModulationWheel/ModulationWheel.html</a>
Thanks
Ray
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