Heil Proset with the IC element (look on the boom pivot) requires a 5.6k ohm resister between pins 1 and 6. On Tue, 21 Mar 2006 23:49:39 +0100, "Dr. Werner Furlan" <furlan at gmx.net> wrote: >Which resistor value between Pin 6 and Pin 1 do you recommend for this >microphone?