Mild OT question – Checking diodes

Robert Simpson

Had this thought reading Craig Sawyers 7844 repair work:

Recently working on a 485, I used a simple diode curve trace set up. One of the diodes clearly showed bad, probably leaky. Initially that diode would still show some forward reverse difference on a DMM diode test. Does this seem reasonable? I am beginning to doubt the DMM diode test, or if I use the DMM test correctly.


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