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<DIV><FONT face=Arial size=2>I find an analog meter more useful than a digital.
Any drift while reading is obvious. Also, when you watch the meter and it looks
like the voltage is going up, the resistor wattage is low, it is getting warm
and changing value. </FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I use a cheap Hobbico analog ESV with short,
permanent leads. It lives in my radio case. I use it before every flight. I try
to use it after every flight as well...</FONT></DIV>
<DIV> </DIV>
<DIV>John Ferrell W8CCW<BR>"My Competition is not my
enemy"<BR><A href="http://DixieNC.US">http://DixieNC.US</A><BR></DIV>
<BLOCKQUOTE
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=bob@toprudder.com href="mailto:bob@toprudder.com">Bob Richards</A>
</DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=nsrca-discussion@lists.nsrca.org
href="mailto:nsrca-discussion@lists.nsrca.org">NSRCA Mailing List</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Friday, June 16, 2006 7:36 AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [NSRCA-discussion] JR and
un-regulated 6V</DIV>
<DIV><BR></DIV>
<DIV>Anthony,</DIV>
<DIV> </DIV>
<DIV>Resistance (ohms) = voltage / current (amps)</DIV>
<DIV> </DIV>
<DIV>6v / 0.5a = 12 ohms.</DIV>
<DIV> </DIV>
<DIV>Now, for power rating in watts:</DIV>
<DIV> </DIV>
<DIV>P = current (amps) x volts.</DIV>
<DIV> </DIV>
<DIV>0.5 x 6 = 3 watts.</DIV>
<DIV> </DIV>
<DIV>Now, the trick is to find a resistor that size. Radio Shack probably
won't have one that size. But, you can put multiple resistors together to get
the resistance and wattage you need.</DIV>
<DIV> </DIV>
<DIV>Radio Shack has (at least on their website) 100 ohm 1/2 watt resistors.
You can parallel 8 of these to get 12.5 ohms and 4 watts. Should be close
enough for your purpose.</DIV>
<DIV> </DIV>
<DIV>Bob R.</DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV><BR><BR><B><I>Anthony Romano <anthonyr105@hotmail.com></I></B>
wrote:</DIV>
<BLOCKQUOTE class=replbq
style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">Good
idea. Could someone suggest a resistor for 500mah load on 6v for the
<BR>electrically impaired?<BR><BR>Anthony<BR><BR><BR></BLOCKQUOTE>
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