<< Your new schematic does not have a gain control for the mic preamp...My preamp circuit in the Sticky has the 470k pot as its gain control. It adjusts the gain from 1 to 214...Maybe the 150k negative feedback resistor for your 1st opamp should be a pot. >>
That was the plan from day 1. The counters show that some 12,000 people have viewed your Sticky circuit. Certainly tens or them if not hundreds (thousands?) have built it, and been happy, and bragged to their girlfriends, and received their reward, so I figured what can be wrong?
But that was before I ran afoul of Charles Kitchin, waving his degrees and published papers (many). Mr. Kitchin warns in grim detail of the dangers of bias errors, but then offers a solution. And we who keep our pencils in carefully straight lines are influenced by such things.