Re: A question from the unwashed relative to: I built a TM500 mainframe tester, and updated the design. Someone might find this useful?
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I have heard anecdotal evidence that it was something that was occasionally found in early mainframes.
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When so many mainframes were produced, I'm sure a few slipped through on a tired Friday afternoon or a hungover Monday morning... :D A few modules flat out won't work if one phase is miswired, the FG504 is one of these due to how it uses the transformer windings in its onboard power supply. There is actually a note about it and how to test it in the FG504 manual, so at least Tektronix was aware of the possibility. On Sat, Jan 2, 2021 at 01:03 PM, Roy Thistle wrote:
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Jared Cabot