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About Blue ESR Meter and Blue Ring Tester

By on September 6, 2008

I have a repair friend who told me that he sometimes confused about both meters. Most probably it could be the name that start with “BLUE”. Remember that a Blue ESR Meter is use to test ESR Ohm value in electrolytic capacitor and the Blue Ring Tester is for testing coils. Here are two websites that clearly explains about  these tho meters:

Blue ESR Meter and

Blue Ring Tester 


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