k1803 hi i have built the 1803 pre amp and it works fine on a dynamic mic
but the problem is i intend to use it with a elect condencer mic (computer mic) and input pc with line-in .
so i got a diagram from this site and cant get it to work (it just buzies and the pitch alters with adjustment of the out put) any help greatfully recieved
Electret microphone needs a separate power supply.
Make sure connection of the microphone is correct.
many thanks for taken the trouble to reply but that is the diagram i used to wire up the elctrec mic but with no joy