[sdiy] Wikipedia DCO article

[Cornutt, David K]

> From: Bob Weigel [mailto:sounddoctorin at imt.net] 

> I probably left something that could be read that way.  I 
> didn't go into detail on the JUNO's and I'll try to fix it if 
> it's in the section I wrote...  otherwise I'll leave it for 
> Tom.  But the main difference in 60 and 106 I think is analog 
> envelopes on the early junos and probably just a little 
> different set up on the filters though they really are using 
> the same parts inside those modules. -Bob

Nice work.  An aside:

I've spent some time studying the schematics for all of the Junos.
One significant difference in the 106 (and I was surprised when I
found it) is actually the high-pass filter.  On the 60, position 0
is a bypass position, and positions 1-3 do various amounts of
filtering.  On the 106, position 0 is actually a bass boost;
position 1 is all-pass, and positions 2 and 3 are high cut, although
not the same values as for the 60.  I'm not sure why they changed it.