Xref: utzoo comp.sys.mac:27845 rec.ham-radio:9166 Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!rutgers!columbia!cunixc!kingdon From: kingdon@cunixc.cc.columbia.edu (John Kingdon) Newsgroups: comp.sys.mac,rec.ham-radio Subject: Ham keyer and the Mac ADB Keywords: homebrew keyer, macintosh, adb Message-ID: <1264@cunixc.cc.columbia.edu> Date: 6 Mar 89 02:10:52 GMT Reply-To: kingdon@cunixc.cc.columbia.edu (John Kingdon) Distribution: usa Organization: Columbia University Lines: 14 hook it up via the ADB of a Mac SE so when I key down it triggers a "click" for a MouseEvent. I will then use Telegraph DA to help me with learning morse code on a "real" keyer instead of the mouse. Does anyone think there is more circutry than merely the switch involved in this project. I can get the pinouts from Apple Tech notes, but I am not familiar with the Apple ADB enough to know if there is some need for a resistor or IC somewhere. Please email your response to me. Thanks in advance John Kingdon ------------------------------------------------------------------------------- John Kingdon (212)-678-1689 | CompuServe 71471, 1062 UUCP ...!rutgers!columbia!cunixc!kingdon | ARPA kingdon@cunixc.columbia.edu USEnet ...!topaz!columbia!cunixc!kingdon | BITNET kingdon@cunixc.bitnet