Thanks Jerry;
I have the same result using a variety of cables into a 50 Ohm feedthru termination on several different scopes.
It has two nearly identical rectifier circuits (+20 and -20V supplies) and in comparing the two, it appears that the +20 side rectifier has a diode that is breaking down in both directions. I am wondering if this could cause both the noisy output and the nonadjustable +20V.
Phil...
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--- In TekScopes@..., jerry massengale <j_massengale@...> wrote:
Hi phil,
Seeing the noisy signal makes me want to check shields and grounds. maybe a bad coax cable. Do you have the proper load on the output?
Jerry Massengale
