On Wed, 2 Aug 2006, Sean Costello wrote: > never seen before: the SH-101 has back-to-back diodes going to ground in the > feedback path of the filter. > Is this the reason that the SH-101 has a fairly nonlinear filter? Pretty much yes. Antti "No boom today. Boom tomorrow. There's always a boom tomorrow" -- Lt. Cmdr. Ivanova