[WriteLog] Parallel Interface

Fri, 06 Jul 2001 16:03:45 -0500

<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>


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