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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Dave:<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>I am going by what two different engineers told me. The one was
the engineer who worked on the machine during its life at the TV station it was
used at and the other was an engineer from our facility.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>I can tell you this…the transformer was wired differently than
in the manuals we have…which makes this a little bit confusing. We have the
original manuals from this machine, but the wiring diagrams don’t exactly
conform to the way the transformer is wired.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><br>
The next time I am at the facility, I’ll take a picture of the transformer and
email it to the group.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Thanks;<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>John Walko<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
quadlist-bounces@quadvideotapegroup.com
[mailto:quadlist-bounces@quadvideotapegroup.com] <b>On Behalf Of </b>Dave Sieg<br>
<b>Sent:</b> Monday, July 06, 2009 10:48 AM<br>
<b>To:</b> Quad List<br>
<b>Subject:</b> Re: [QuadList] Restoring an Ampex AVR-1<o:p></o:p></span></p>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>John:<br>
Are you certain your building is wired for 208v 3 phase? Unless it is a
very large industrial type building most are only wired with 240v two phases.
You would have to take the front panel off your breaker panel to see if
there are three feeder buses or just two. I have seen people who don't
understand the distinction wire the three "hot" pins of a 3-phase
connector to three adjacent breakers in a 240v two-phase panel which means that
two of the phases are essentially shorted together. This might be part of
your problem. Another way to tell would be to use a voltmeter to confirm that
you have 208 volts between any two of the three "hot" contacts of the
power socket. (You probably have an L21-30 connector, See <a
href="http://en.wikipedia.org/wiki/Industrial_and_multiphase_power_plugs_and_sockets#NEMA_10-20.2C_10-30_and_10-50">http://en.wikipedia.org/wiki/Industrial_and_multiphase_power_plugs_and_sockets#NEMA_10-20.2C_10-30_and_10-50</a> The
"hot" contacts are the outer three that do NOT have an
L-shape) I am not familiar enough with the AVR-1 to know if there
are tapping options to change it over to 240v but the manuals should say.<o:p></o:p></p>
<div>
<p class=MsoNormal style='margin-bottom:12.0pt'>Dave<o:p></o:p></p>
<div>
<p class=MsoNormal>On Mon, Jul 6, 2009 at 9:08 AM, John Walko <<a
href="mailto:jwalko@scenesavers.com">jwalko@scenesavers.com</a>> wrote:<o:p></o:p></p>
<div>
<div>
<p><span style='font-size:11.0pt;color:#1F497D'>Park:<br>
<br>
We sort of gave up on the AVR-1. It is simply a time issue…we would
really like to get it working, but don’t have the time to spend on it right
now. Maybe some time in the future.</span><o:p></o:p></p>
<p>The machine was working when it was taken out of service. It has been
sitting without power for probably the last 5-6 years. It appears as if
the machine was originally wired for a 208-three phase volt power supply, and
that is the way it is currently wired. <o:p></o:p></p>
</div>
</div>
</div>
<p class=MsoNormal>-- <br>
Dave Sieg<br>
<a href="http://www.davesieg.com">http://www.davesieg.com</a><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><a href="http://www.scanimate.net">http://www.scanimate.net</a><o:p></o:p></p>
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<p class=MsoNormal><o:p> </o:p></p>
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