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Author Topic: Pretty Cool Score...  (Read 2289 times)
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N8ETQ
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Mort


« on: November 14, 2015, 10:45:49 AM »




        A friend of mine procured a few of
these via an auction.

      More consistent test results for both the
unit under test and my stable of antique test gear!


/Dan




* GRC_Constant_Voltage_Reg. 001.jpg (254.47 KB, 1824x1368 - viewed 443 times.)

* GRC_Constant_Voltage_Reg. 002.jpg (284.74 KB, 1824x1368 - viewed 471 times.)

* GRC_Constant_Voltage_Reg. 003.jpg (172.27 KB, 1824x1368 - viewed 437 times.)
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Patrick J. / KD5OEI
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« Reply #1 on: November 14, 2015, 10:04:38 PM »

Those are perfect. The only thing better is possibly a GE Inductrol (no power-carrying moving contacts), if you can find one.
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N8ETQ
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Mort


« Reply #2 on: November 15, 2015, 06:54:10 AM »




     Thanks Patrick,


           This thing seems to do the same. The Variac is
unique in that he has a "Center Tap" and just controls
buck/boost to one side of the XFMR.  All the load "I" is
going through the other side.  Here is a functional
schematic.

The Manual is here:
 http://www.ietlabs.com/pdf/Manuals/GR/1571A-%201582A%20Automatic%20Voltage%20Regulator%20Instruction%20Manual%20Complete.pdf


          I just have to find a place under my bench for him and
get it all plumbed in.

73

/Dan



* GRC_Regulator.gif (125.65 KB, 1128x663 - viewed 454 times.)
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