On 5/3/2021 4:07 PM, John W2XS wrote:
The other day I turned on my Astron RS-35M and then my K3, P3, KAT500, and
KPA500. I've done this at least once per day for the last several years.
This time, however, I heard arcing from the Astron's on/off switch. Then I
saw that the KAT500 LED was blinking constantly about 3 times per second.
Every Astron I've checked had a manufacturing defect that fails to bond
AC power line green wire to the chassis, thanks to paint under the lug
to which it was soldered. In addition, the V- terminal is soldered to
the same lug, connecting it to the green wire, but not to the chassis. I
suspect that when the switch broke, it put some voltage on V- and
failure to bond stuff properly in the shack coupled some voltage to the
KAT500.
73, Jim K9YC
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