Nov 5, 2012 #1 S sdowney717 Member level 1 Joined Nov 2, 2012 Messages 35 Helped 1 Reputation 2 Reaction score 1 Trophy points 1,288 Activity points 1,689 I have 3 of these I am wondering if they are bad. On one side reads same regardless of polarity 1k 1k 21k on other side of photo coupler polarity reversed polarity 5.6m ohms 5.6 m ohms 5.6 m ohms 5.6 m ohms 9.7 m ohms open These are in circuit tests. Thoughts? will PC 817 versus EL 817 work the same? Last edited: Nov 5, 2012
I have 3 of these I am wondering if they are bad. On one side reads same regardless of polarity 1k 1k 21k on other side of photo coupler polarity reversed polarity 5.6m ohms 5.6 m ohms 5.6 m ohms 5.6 m ohms 9.7 m ohms open These are in circuit tests. Thoughts? will PC 817 versus EL 817 work the same?