<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Sorry, I said Pedro's is 4 channels but it's only 2 channels! Four electrodes, two channels, nine XRL plugs including the DRL.<br><div><br><div>Begin forwarded message:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><font face="Helvetica" size="3" color="#000000" style="font: 12.0px Helvetica; color: #000000"><b>From: </b></font><font face="Helvetica" size="3" style="font: 12.0px Helvetica">Tracy Jacobs <<a href="mailto:kinetical@comcast.net">kinetical@comcast.net</a>></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><font face="Helvetica" size="3" color="#000000" style="font: 12.0px Helvetica; color: #000000"><b>Date: </b></font><font face="Helvetica" size="3" style="font: 12.0px Helvetica">December 21, 2009 10:06:56 PM PST</font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><font face="Helvetica" size="3" color="#000000" style="font: 12.0px Helvetica; color: #000000"><b>To: </b></font><font face="Helvetica" size="3" style="font: 12.0px Helvetica"><a href="mailto:eeg@lists.noisebridge.net">eeg@lists.noisebridge.net</a></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><font face="Helvetica" size="3" color="#000000" style="font: 12.0px Helvetica; color: #000000"><b>Subject: </b></font><font face="Helvetica" size="3" style="font: 12.0px Helvetica"><b>Re: [EEG] electrodes</b></font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; min-height: 14px; "><br></div> </div><div>Well, when you look at Pedro's whole setup for 4 channels, he is using <br>8 xlr plugs plus one drl.<br><br>The way Mitch wired up these two electrodes I have makes it seem like <br>I can't wire them up to one xlr plug, but would need 2 for each <br>electrode, because each electrode has 2 cables with wires going to <br>different things.<br><br>The passive elctrode diagram is much simpler, it looks like 2 <br>electrodes/one channel going to one xlr plug with one cable per <br>electrode?<br><br>The wiring looks really different to me...<br><br>Tracy<br>On Dec 21, 2009, at 9:55 PM, Josh Bailey wrote:<br><br><blockquote type="cite"><br></blockquote><blockquote type="cite">Bit confused. The major difference between active/passive wiring is <br></blockquote><blockquote type="cite">with<br></blockquote><blockquote type="cite">active you of course have to ship the power up to the 'trode. I <br></blockquote><blockquote type="cite">don't see<br></blockquote><blockquote type="cite">any other major difference (i.e. I don't expect to see one)? What am I<br></blockquote><blockquote type="cite">missing?<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">On Mon, 21 Dec 2009, Tracy Jacobs wrote:<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite"><blockquote type="cite">Hello group,<br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite">I was studying the instructions on the open EEG site for the case and<br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite">cabling again, and it looks like you hook up the cables a bit<br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite">differently for the active elctrodes that I made :<br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><a href="http://www.dcc.uchile.cl/~peortega/ae/">http://www.dcc.uchile.cl/~peortega/ae/</a><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite">than you might want to do for the cap or for passive electrodes.<br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><a href="http://openeeg.sourceforge.net/doc/SimpleEEG/CaseCabling.html">http://openeeg.sourceforge.net/doc/SimpleEEG/CaseCabling.html</a><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"> So, I'm not a little unsure how to proceed with the wiring.<br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite">I made 4 of the PEdro's active electrodes, boards and all, and it<br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite">would be lovely to get them to work. But that's still only two <br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite">channels,<br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"> Mitch said to use his boards with mine for the 4 channel. There is<br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite">enough room for 8 channels in this box, at least, if we can find the<br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite">boards.<br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite">Tracy<br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite">_______________________________________________<br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite">EEG mailing list<br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><a href="mailto:EEG@lists.noisebridge.net">EEG@lists.noisebridge.net</a><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><a href="https://www.noisebridge.net/mailman/listinfo/eeg">https://www.noisebridge.net/mailman/listinfo/eeg</a><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><br></blockquote></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">-- <br></blockquote><blockquote type="cite">Josh Bailey (<a href="mailto:josh@anarkiwi.com">josh@anarkiwi.com</a>)<br></blockquote><br>_______________________________________________<br>EEG mailing list<br><a href="mailto:EEG@lists.noisebridge.net">EEG@lists.noisebridge.net</a><br>https://www.noisebridge.net/mailman/listinfo/eeg<br></div></blockquote></div><br></body></html>