Transformers out of Telephone dial up PC modem cards work fine. 73 Pete G3KNU ----- Original Message ----- From: "ve2lx" <ve2lx at sympatico.ca> To: "witelog group" <writelog at contesting.com> Sent: Sunday, February 03, 2008 4:56 PM Subject: [WriteLog] PC isolation transformer > 1: 1 Isolation transformers on PC input ( from transceiver ) and or output > for audio TX. >> What should be the perefered impedance on on both side on each of them. > Gilles > VE2LX > ============== > _______________________________________________ > WriteLog mailing list > WriteLog at contesting.com > http://lists.contesting.com/mailman/listinfo/writelog > WriteLog on the web: http://www.writelog.com/