<html> Hello all.<br> In response to my last message it was suggested that I use an opto-isolator in the parallel interface to the rig to absolutely isolate the computer from the rig.<br> Can I swap out the 2n2222 in the parallel circuit for the 4n33 of the serial in the documentation.<br> Either way this circuit is going to have to drive the grid block keying circuit of my last post.<br> <br> Writelog documentation: <a href=3D"http://www.willinet.net/~kstover/cwint.jpg"= eudora=3D"autourl">http://www.willinet.net/~kstover/cwint.jpg</a><br> <br> Grid block keying circuit: <a href=3D"http://home.att.net/~jacksonharbor/gridbsch.pdf"= eudora=3D"autourl"><font color=3D"#0000FF"><u>http://home.att.net/~jacksonh= arbor/gridbsch.pdf</a></font></u> <br> <br> Thanks for the input.<br> <br> Kevin, N=D8RKX<br> </html> -- WWW: http://www.writelog.com/ Submissions: writelog@contesting.com Administrative requests: writelog-REQUEST@contesting.com Problems: owner-writelog@contesting.com
