Whats a good economical way to test the electricity on a circuit?
Whats a good economical way to test the electricity on a circuit (like noise, dirtiness, etc)? Any suggested meters or analyzers? Want to see where my circuitry needs work/cleaning up.
Oscilloscope for time domain, FFT analyzer for frequency domain, and LISN for what comes out of the power cord of equipment. They are not cheap but that's the only way to visually see/measure noise.
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