Dale, If you're talking modern headphones of the computer variety, the answer is pretty much no. they're very low impedance output, like 32 ohms or less thus would not produce very much voltage and are probably very inefficient at transforming sound into voltage besides that.
mikes for computer sound cards are cheap as dirt unless you really want very high quality for music recording etc. they are all condensor mikes and require a bias D.C. voltage on one pin of the 3 circuit stereo plug which voltage is supplied from the standard sound card mike input. Hope that's what you wanted. Tom To listen to the show archives go to link http://acbradio.org/handyman.html or ftp://ftp.acbradio.org/acbradio-archives/handyman/ The Pod Cast address for the Blind Handy Man Show is. http://www.acbradio.org/news/xml/podcast.php?pgm=saturday The Pod Cast address for the Cooking In The Dark Show is. http://www.gcast.com/u/cookingindark/main.xml Visit The New Blind Handy Man Files Page To Review Contributions From Various List Members At The Following Address: http://www.jaws-users.com/handyman/ Visit the new archives page at the following address http://www.mail-archive.com/blindhandyman@yahoogroups.com/ For a complete list of email commands pertaining to the Blind Handy Man list just send a blank message to: [EMAIL PROTECTED] Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/blindhandyman/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/