<html> <head> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=us-ascii"> <meta name=Generator content="Microsoft Word 10 (filtered)"> <style>  </style> </head> <body lang=EN-US link=blue vlink=blue> <div class=Section1> Thanks Alan and Paul.  What I looked at was a Radio Shack Computer Cooling fan.  I don’t know the specs but I can check.  The box I have is about the same length and width as Paul’s but only 3" deep.  I’m heating it with DC rods.  I have a window cut in the face covered with plexiglass so that I can see the humidistat readings.  There is a dial controlled humidistat that goes down to 10 or 15% RH (much lower than I need).    The other thing I wonder about is just how long should one expect it to take, typically, for a panel  8mm thick that’s kept at shop conditions ( 65 degrees and 50 – 55% RH) to dry down to an EMC of 6 – 6.5% when exposed to a box whose temp is, say,  80 degrees with an RH of 30%, a condition which should produce an EMC of 6.1%.  I’ve read reports that suggest anywhere from 1 or 2 days to 3 months!    <div> David Love davidlovepianos@comcast.net www.davidlovepianos.com </div> -----Original Message----- From: pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org] On Behalf Of paulrevenkojones@aol.com Sent: Saturday, February 23, 2008 7:51 PM To: pianotech@ptg.org Subject: Re: Electrical question   <div> David: It somewhat depends on the size of the box you're building. Mine is 6' x 8' x  15", or about 60 cubic feet. I've installed a small radial mixing fan toward the top blowing down (heat rising); I drilled 6 holes in the top with close-able caps to balance the heat and gauge a temperature against moisture content. I have a Lignomatic moisture meter cable into a piece of spruce from the panel to monitor MC/EMC. The heat source is a contained oil radiator in the back of the box. The whole system is highly indexable. The fans, by the way, are available cheaply in places like American Science supply and are easily wired to a plug. I don't know the voltage or fuse requirement of the small fans you're talking about, but I would guess that 12 volt won't run them, and there has to be a fuse in the line somewhere. Boat engines and wall sockets are my speed. Paul </div> <div>   </div> <div>   </div> -----Original Message----- From: David Love <davidlovepianos@comcast.net> To: 'Pianotech List' <pianotech@ptg.org> Sent: Sat, 23 Feb 2008 9:24 pm Subject: Electrical question <div id="AOLMsgPart_0_3a901ab4-4a24-4330-b08e-775ff59e9e7f"><pre style='margin-left:.5in;background:white'><tt>So I'm making a new hot box for my soundboard panels.  I want to install a</tt> </pre><pre style='margin-left:.5in;background:white'><tt>small little fan like a computer cooling fan in the box to circulate the</tt> </pre><pre style='margin-left:.5in;background:white'><tt>air.  They come with a couple of wires (not like a plug or anything) and</tt> </pre><pre style='margin-left:.5in;background:white'><tt>information about voltage, max current, all kinds of stuff that means</tt> </pre><pre style='margin-left:.5in;background:white'><tt>nothing to me, the electrically challenged.  If I want to hook this thing</tt> </pre><pre style='margin-left:.5in;background:white'><tt>up, how do I do it?  Can I just connect it to a 12 volt battery if it's a 12</tt> </pre><pre style='margin-left:.5in;background:white'><tt>volt fan?  If I want to plug it into something do I need something like a</tt> </pre><pre style='margin-left:.5in;background:white'><tt>capacitor to pull down the current to a level that this little thing can</tt> </pre><pre style='margin-left:.5in;background:white'><tt>handle?  Any advice would be appreciated.  Thanks in advance.  </tt> </pre><pre style='margin-left:.5in;background:white'> </pre><pre style='margin-left:.5in;background:white'><tt>David Love</tt> </pre><pre style='margin-left:.5in;background:white'><tt><a href="mailto:davidlovepianos@comcast.net">davidlovepianos@comcast.net</a> </tt> </pre><pre style='margin-left:.5in;background:white'><tt><a href="http://www.davidlovepianos.com" target="_blank">www.davidlovepianos.com</a></tt> </pre><pre style='margin-left:.5in;background:white'> </pre><pre style='margin-left:.5in;background:white'> </pre><pre style='margin-left:.5in;background:white'> </pre></div> <div> <div class=MsoNormal align=center style='margin-right:0in;margin-bottom:0in; margin-left:.5in;margin-bottom:.0001pt;text-align:center'> <hr size=2 width="100%" align=center> </div>  More new features than ever. Check out the new <a href="http://o.aolcdn.com/cdn.webmail.aol.com/mailtour/aol/en-us/text.htm?ncid=aolcmp00050000000003" target="_blank">AOL Mail</a>! </div> </div> </body> </html>