Ferrites, and buzzing
Hoping to start a discussion, not solve any issue here. I have a "watt's up" wattmeter clone from Windy Nation. This came with 8awg leads instead of the usual 12awg. I'd found its AH and KWH fi...
Forum Discussion
Ah yes the world of resonant frequency and 2nd and 3rd harmonics. I tried to list capacitors in ordinal the likeliest first. Just a guess but something is whispering the noise may be in the 5-10 KHz range. It would ignore a 200uf capacitor. Do try the .01uf If it is an issue with resonance the .01 just may affect it enough to gain a clue. This is feeling my way at midnight with heavy gloves but hopefully it will get you moving forward.
