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Old 7th Sep 2019, 9:18 am   #16
Argus25
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Join Date: Oct 2016
Location: Maroochydore, Queensland, Australia.
Posts: 2,679
Default Re: Defective/ fake LM317T

I would recommend tacking two 0.1uF 50V monolithic ceramic capacitors each directly on the input and output pins of the regulator to ground (common, negative), just on the off chance you had an RF oscillation problem which was fouling up your DC measurements.
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