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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>As my boss once told me, don’t
confuse precision with accuracy and repeatability. Just because a spreadsheet
calculation shows 14 digits doesn’t mean that it is accurate. Accuracy
only happens when calibrated against a standard; repeatability is a little easier
to measure.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Tahoma><span
style='font-size:10.0pt;font-family:Tahoma'>-----Original Message-----<br>
<b><span style='font-weight:bold'>From:</span></b>
nsrca-discussion-bounces@lists.nsrca.org
[mailto:nsrca-discussion-bounces@lists.nsrca.org] <b><span style='font-weight:
bold'>On Behalf Of </span></b>Bob Richards<br>
<b><span style='font-weight:bold'>Sent:</span></b> Friday, June 16, 2006 11:59
AM<br>
<b><span style='font-weight:bold'>To:</span></b> NSRCA Mailing List<br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [NSRCA-discussion] JR
and un-regulated 6V</span></font></p>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'><o:p> </o:p></span></font></p>
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<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>John,<o:p></o:p></span></font></p>
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<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'> <o:p></o:p></span></font></p>
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<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>For some things, I like analog. For fluctuating
signals, a needle is good. Some digital meters have an analog bargraph for that
reason. My Fluke has that, as well as a min/max function which is handy.
However, you can't get 3+ digits precision with a needle. :-) I need that
for checking Lipo cells to make sure they are balanced before/after charge.<o:p></o:p></span></font></p>
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<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'> <o:p></o:p></span></font></p>
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<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>I like analog tachometers, I still have a really old
Royal tach that I built from a kit back in the 70s. Still resides in my field
box.<o:p></o:p></span></font></p>
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<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'> <o:p></o:p></span></font></p>
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<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>Bob R.<o:p></o:p></span></font></p>
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<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'><br>
<br>
<b><i><span style='font-weight:bold;font-style:italic'>John Ferrell
<johnferrell@earthlink.net></span></i></b> wrote:<o:p></o:p></span></font></p>
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<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>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. </span></font><o:p></o:p></p>
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<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'> <o:p></o:p></span></font></p>
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<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>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...</span></font><o:p></o:p></p>
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<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'> <o:p></o:p></span></font></p>
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<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>John Ferrell W8CCW<br>
"My Competition is not my enemy"<br>
<a href="http://dixienc.us/">http://DixieNC.US</a><o:p></o:p></span></font></p>
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<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'> <o:p></o:p></span></font></p>
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