On 12/5/2023 9:33 AM, Michael Tope wrote:
I did move the Astron RS-35 that powers the K3S off my UPS a few weeks ago.
See this note on a manufacturing issue that I found in several of my
Astron supplies that can cause instability. The bond between the AC
green wire, V-, is insulated from the chassis by paint at the mounting
leg of the old-style terminal strip next to the V- terminal. The defect
can be confirmed by an ohmmeter measurement between the green wire at
the plug and the chassis.
http://k9yc.com/PowerSupplyBondingAndAudioDistortion.pdf
73, Jim K9YC
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