4046 VCO experiment

[Scott Gravenhorst]

Harry, Martin and all,

Thanks for the help andsuggestions.  It seems that the 4046 VCO 
really isn't suited for this sort of application.  It hasn't 
performed in a linear fashion for me, at least not over a large 
enough range to be a musical VCO.  Great little PLL though.

I now have 3 options on the table:

AD654, XR2206 and 566.

I like the AD654 because it has a built in V/I converter.  The 566
can probably work with an external V/I converter.  Looking at XR2206,
I think it has one built in too.  Now I am determining how close to
"unobtainium" each of these is.  I've already had trouble ordering
the 566, I got my order bounced from 2 places for zero on hand, I
still have one order pending.

<sigh>

If worse comes to worst, I may just clone the FatMan VCO.  At least
I can get the parts for it.

-- Scott Gravenhorst : On The Edge, but the Edge of What?
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