Vince: If your electret contains the FET follower inside, the typical source impedence of the FET is about 1.5K to 3.0K Ohms. I usually AC couple the output
(with say a 1 uF cap observe polarity carefully) to a 5 to 10K load.
Usually anything from a 1.5 V battery to a 6 V battery or well filtered supply will work (I usually put a few K Ohms in series with the supply. If your supply lines are long, it is best to put a 1 uF cap and a .01 uF cap across the electret supply input and ground. They do love to hum so shield well. Good Luch, Charlie, K0NG ---------------------------------------------------------------- This message was sent using IMP, the Internet Messaging Program. ______________________________________________________________ AMRadio mailing list List Home: http://mailman.qth.net/mailman/listinfo/amradio Partner Website: http://www.amfone.net Help: http://mailman.qth.net/mmfaq.html Post: mailto:[email protected]
