Wait no longer! Build yourself a little circuit to change the analog phone’s audio to regular line audio to record with your sound card.

Before the untimely death of analog guru Jim Williams in 2011, he and Bob Dobkin had started to compile Linear Technology application notes and information for publication in book form. The first ...

We started out with an old modem and ended up with a useful circuit to convert phone audio to regular line audio. This little hack is useful for those of us wanting to record Voip telephone calls ...