On 12/9/2011 12:32 PM, amsctalx at comcast.net wrote: > Should I try biasing to the tip and or should I try a dropping resistor? Stick a 4.7K resistor between V+ and the tip, connect the tip straight to the mic input. Shield to chassis. Resistor can be very low power rating, so it can fit inside the connector. 73, Jim K9YC