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Old 6th July 2015
  #9
Lives for gear
 

yea it would be better to use a step up transformer like a 200:47K into ic2. ditch ic1 and the transistors and rework the input level control into the negative feedback circuit of ic2with the op amp upgrade the offset voltage would be low enough to ditch the output cap ( c12) you might have to adjust r21 value if the output has dc offset voltage.

but just like Jim said, there are better mic preamps to mess around with this way....