In the following circuitv there is a 3 way switch that selects the VCF freq 'range' (3 capacitors set choices).. http://www.freeinfosociety.com/media/images/4145.jpg Which capacitors set would provide full freq range sweep ? C1: 1.2uF C2: 0.3uF C3: 0.075uF I would quess C1 1.2uF Any clues ? J-Pierre