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<DIV><FONT face=Arial color=#0000ff size=2><SPAN class=060050100-28012003>What
where the original spec's for the optigon?</SPAN></FONT></DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN
class=060050100-28012003></SPAN></FONT> </DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN class=060050100-28012003>Was it
linear velocity or did the higher notes encode in the smaller diameter portion
of the record surface? </SPAN></FONT></DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN
class=060050100-28012003></SPAN></FONT> </DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN class=060050100-28012003>Your
"Tube" idea sounds "conceptually" like a Mellotron since each recording is of
equal length (but with no spring return). And since no spring
return how will you control rotation (assuming an "attack" "sustain" and
"decay")? Or does the "ORGAN" part mean "bang yer on" "bang yer
off"?</SPAN></FONT></DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN
class=060050100-28012003></SPAN></FONT> </DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN class=060050100-28012003>Since
the original "records" where "printed" they were not "pixelated" but continuous
representations. Would you OPTO integrate the "BEST QUALITY" printing into
an essentially linear reproduction?</SPAN></FONT></DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN
class=060050100-28012003></SPAN></FONT> </DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN class=060050100-28012003>The
optigon records i remember had pattern percussion which i thought was also on
the record.</SPAN></FONT></DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN
class=060050100-28012003></SPAN></FONT> </DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN
class=060050100-28012003>interesting project, basically an analog sample
playback system.</SPAN></FONT></DIV>
<DIV><FONT face=Arial><FONT size=2><SPAN class=060050100-28012003><FONT
color=#0000ff> </FONT></SPAN></FONT></FONT></DIV>
<DIV><FONT face=Arial><FONT size=2><SPAN
class=060050100-28012003>regards,</SPAN></FONT></FONT></DIV>
<DIV><FONT face=Arial><FONT size=2><SPAN
class=060050100-28012003>p</SPAN></FONT></FONT></DIV>
<DIV><FONT face=Arial><FONT size=2><SPAN
class=060050100-28012003></SPAN></FONT></FONT> </DIV>
<DIV><FONT face=Arial><FONT size=2><SPAN
class=060050100-28012003> </SPAN>Hi.</FONT></FONT></DIV>
<DIV><FONT face=Arial size=2>I'm a fan of the old optigan organs, and after
despairing of finding one in Wales, have decided to have a go at building one.
The principle looks straight forward, and I can code a little, so I think I can
make something similar using a computer to generate the tracks.</FONT></DIV>
<DIV><FONT face=Arial color=#0000ff size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Rather than attempting to make circular records, I
think it will be possible to print the waveforms onto transparent acetate with a
laser printer, and roll the resulting sheet around a clear plastic tube about 6"
in diameter.</FONT></DIV>
<DIV><FONT face=Arial color=#0000ff size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I will then put the light source inside the tube,
use a motor to turn it, and use a single hand held photocell to select the
tracks.</FONT></DIV>
<DIV><FONT face=Arial size=2>With a 1400 dpi printer I reackon I could get about
2 seconds of 7k bandwidth with a pretty low amplitude resolution with about 10
tracks per sheet.</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>Anyone tried laser printing waveforms onto acetate?
I'm not expecting hi-fi results. :)</FONT></DIV>
<DIV><FONT face=Arial size=2>I guess the only way is to try it, but I would be
interested to see if anyone else has had a go, and if they had any
advice.</FONT></DIV>
<DIV><FONT face=Arial size=2>This list looks like a good place to
ask!</FONT></DIV>
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