Hello everyone,
I have a Rigol DS1054 oscilloscope that I’m using to try and locate the outside foil lead of my capacitors using Mr Carlson’s method, but for the life of me I can not see a difference in noise level when I reverse the leads of the scope. I have tried this over and over again for hours and I have ran out of patience. Is there something that someone could tell me that I’m missing or is there something else that I could do to find the outside foil on these capacitors.
Thanks
Alex
Silly question, is the oscilloscope probe set to 10x instead of 1x?
Yes, I have tried both settings.
Thanks
Alex
I saw a YouTube video where the person used a power cord from a computer or similar item to find the outside foil rather than using your fingers. They plugged the cable into an outlet and then placed the other end next to the capacitor. I have not tried this method, but I have had similar problems. I think by using your fingers different pressure on the capacitor can give you different results. Whereas the receptacle end of the power cord should give consistent results and maybe better results.
I use x1 on the probe, high sensitivity setting on dc coupling I believe. This is normally done on my Tek 535A with a 1A7 or type E plug in. I have ran into that issue on the light values not showing much of a difference. Typically I put my free hand near a line cord to couple in more signal than what is around, also making sure you aren’t touching anything grounded to prevent cancelling out the signal you are putting into the cap. I could go for the auto switcher one of these days.
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