Every Astron supply I've opened has had the defect of failure to bond
the green wire to the chassis. The point of failure is paint between the
chassis and the mounting lug of the terminal strip where the green wire
is soldered. One of those supplies, which I still own as a backup, has
paint between the two "clam-shell" sections of the chassis that prevents
their making contact, thus defeating shielding.
Early Elecraft products had this problem, but newer ones do not. Those
building kits will remember paint-protecting tape that must be removed
at points where the sections of the chassis mate.
73, Jim K9YC
On Sun,1/29/2017 10:49 AM, George Thornton wrote:
I took it apart today and found that although the connection between the power
leads and the bolts was tight, the connection between the bolt and the housing
of the power supply had worked a bit loose over the years. I took things
apart and tightened the connection between the case and the bolt.
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