Gary, I've sent you a schematic off list of what I use for my ChipCorder (ISD4002). This works very well, not know what exactly you are looking for. David ----- Original Message ----- From: "Gary (REMOVE THIS)" To: Sent: Saturday, April 27, 2002 7:02 AM Subject: [OT]: AGC circuit required for electret mic Hi, Anyone have a circuit that will give more or less constant output using a electret mic as input, even if you are 1 metre or 5 metres from mic? Circuit must be low cost, low current would be good <1ma? and simple if possible? Thanks Gary -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads