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#1
08-06-2023, 11:07 AM
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The SAMS is correct, the resistance check has little to do with the values of the 2 470ks but the coupled value of both pins through them.
R173 is 2.2 meg, so it will be less than that to ground, for both pins 1-2, you may want to try removing V22, and measuring the resistance for pins 1 and 2 to ground with the tube out.
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