Hi, I want to interface to a Hi-Fi type Amplified, which has a regular line level input. But I'm having great difficulty in finding out what exactly "line" meaans. There's a lot of conflicting information out there. Second question, derived from the first... Given an astable 555 outputting about 1.3 KHz, close to 50% DC, and 0-5v Pk2Pk, how can I convert this to "line level" ? Thanks Jon -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body