the old oscillator in the minimoog is/was discrete, so no worries there. unfortunately, i was planning on building the newer VCO cos its more stable...catch-22 have nice days. On 16 Jun 2004, at 11:42, Peter Grenader wrote: > Sorry - let me clarify. The UA726 was in the expo converter in the > VCOs. > So, you'll need three of them.