Another idea for a triangle VCO

[Jim Patchell]

    I just had a thought on a modification to Ian's triangle VCO
(http://home.earthlink.net/~ijfritz/sy_cir4.htm).  Instead of the
ADG431, use a couple of P-Channel Jfets.  When I get home tonight, I
will draw up a quick schematic and post it, (I hope).

    Ian, did you consider this?

    -Jim