ESR meter

I built the poptronics esr meter with a FAR circuit board. when i check a regular cap it works as it should but when i check a electolitic it generates about 5 to 10 % more voltage at the meter than when the probes are touched and the meter is zeroed out. I have checked all componet location & polarity 3 times and the voltages are good checked with meter & O scope. any ideas? Dan

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The first Poptronics article was absolutely riddled with drafting errors. Later they brought out a lot of corrections. Have you incorporated those corrections into your meter?


"danbob5" wrote:

Reply to
Bob Parker

Please consider buying an EVB ESR meter. This piece of equipment is great. I don't know what is your purpose of checking ceramic or polyester caps because they almost never wear out. Regular ohm meter should be fine for those.

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Antti OH7GLS

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Antti Panula

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