How to find the Inner and Outer foil of a Film Capacitor

[@TheRealAudioDidact]

another excellent video NICK!

[@FredSchill]

Thanks for the advice using the power cable instead of just touching the cap!!! My Oscilloscopes is one of the cheaper models and it doesn't have the sensitivity for the finger method, with your tip I can measure my caps no problem! Awesome

[@nathankimmett8803]

Does this apply to speaker crossovers or just power filter caps?

[@dh_playground]

First of all, thank you for the helpful video. In the case of Kemet SMR PPS film capacitor 50v 0.10uF, the waveform does not appear with the method you told me. Is it a problem with my oscilloscope? It is a multimeter and portable oscilloscope called ZOYI ZT-703S.

[@HavershamHydroponics]

HI It can be tricky to identify which is which. Do you have a source of noise that you can put it near? A mains transformer perhaps? Regards

[@dh_playground]

@@HavershamHydroponics Thanks for your answer. My question is not about the noise source, but basically, when I bite the capacitor with my portable oscilloscope, no waveform is generated. So, I want to know whether it is impossible to measure with a portable oscilloscope, or whether there are limitations depending on the type and capacity of the capacitor I am trying to measure. Thank you for your kind attention.

[@riley0187]

So the lead doesnt connect to left and right speaker, one end goes to ground?

[@hificollective]

No, you would actually need to connect up the capacitor according to the circuit diagram. One end of the capacitor will be closer to the negative input it is that end that should be the outer foil end

[@glennjarrett-i4q]

pity the manufacturer cant put an arrow on it

[@southbendkid]

Thanks. Another youtuber recommended building an elaborate tester. I just want to identify some caps. I don't need another project.

[@carlrudd1858]

Don't worry about any of this if you're just recapping old vintage radios and phonographs with new film caps.

[@David-mo2zq]

The ideer is