At 11:02 AM 3/13/2012, m brandenberg wrote: >On Tue, 13 Mar 2012, Jean-Pierre Desrochers wrote: > >>I ended up with the HF tracking resistor R50=3.3M, >>a bit high for a resistor to me >>but the vco was tracking around 8 octaves >>very nicely ! > >Eight octaves? Building a Boite Diabolique? Nowadays 11 oct minimum is a piece of cake. Ian