<html><head><meta http-equiv="Content-Type" content="text/html; charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">In doing a little spring cleaning, I discovered a trio (no idea why 3) of RS-232->AFSK modems which I was going to use on my teleoperations project.<div class=""><br class=""></div><div class="">They have DB-25s on the serial side, phono connectors on audio in and out, and use 2211 and 2206 modulator/demodulator chips. A MAX232 chip does level translation to RS-232.</div><div class=""><br class=""></div><div class=""><img apple-inline="yes" id="81577303-EC69-4B64-B396-BB66489045FE" src="cid:23A90C46-91D6-4975-BF7B-AC2D89F6FC7B" class=""></div><div class=""><br class=""></div><div class="">It looks like I put them in aluminum boxes, so they are ready to go. No idea when/where I got the boards, but if someone wanted to play around with them, they probably work... 7 pots, so looks like lots of adjustability.</div><div class=""><br class=""></div><div class="">Free for pickup in North Reading, or I can ship them at your expense.</div><div class=""><br class=""></div><div class="">Willie</div><div class="">N1JBJ</div><div class=""><br class=""></div></body></html>