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Thursday, November 14, 2013

How to modify ESR meter probe



I bought this ESR meter from eBay but I realized that the probes were too short for me to use comfortably and therefore I decided to do something about the probe length without compromising the overall accuracy of the meter.


To minimize interference from the EMI signal I decided to use RF shielded cable like the ones used for carrying audio signals(eg speaker wires)

I used 60cm long shielded RF cable, a pair banana plug and a pair of crocodile clip.  You can easily swap the probes to use them on the capacitance meter also.

Original probe…too short for in circuit testing



Modified probe with crocodile clip-Very good for in circuit testing and out of circuit testing:



Modified probe with ordinary sharp pointed probes-Very good for in circuit testing (both under the circuit and components side where capacitors are many and crowded


2 comments:

  1. hi my friend nice improvise of esr meter probe. it is cheaper than blue esr. Thanks for sharing

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    Replies
    1. Hi Zed, Sure,i bought it at $60 US dollars but i believe the blue E.S.R is superior quality
      regards Humphrey

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