[sdiy] more on which VCO

[Mark Romberg]

ok...i have a set of specs that i want in a VCO, but i havent found a 
design (or mulitple designs that look like they could be kludged into 
what i want) online.  so i humbly put before you my specs, and seek a 
VCO that can live up to the challenge:

-square, sawtooth, sine, and triangle waves, preferably simultaneous 
outputs (the tri wave is kind of an afterthought, i wont use it much so 
if i cant have it, thats life in the big city. really its the saw thats 
hard to find included, i've found several square/sine/tri VCOs
-oscillator sync
-frequency modulation
-pulse-width modulation

the VCO at midwest analog looks promising, but it lacks oscillator sync 
and a sawtooth waveshaper (the basic waveform is triangle)
suggestions, ready go.
also, if there's some basic facet of analog VCO design that im missing, 
like that oscillator sync is the same thing as FM or is just one 
oscillator's output used as CV for the second, feel free to berate me.  
im new to analog synthesis and homebuilt electronics so i need to get 
the stupid questions out of the way :P

have nice days.