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Analog Oscilloscope Headphone Jack

PostPosted: Sun Jul 29, 2018 9:37 am
by FlyMario
I plug my Oscilloscope to the output of a headphone jack to begin working on a circuit to isolate negative voltages of the NBTV signal. However my neither of my scopes (siglent or dso nano) are showing any waveforms from the output. However I can connect the leads to a amplified speaker and it sounds fine. Is there some reason this should be happening that you guys can think of?

Sorry if this is in the wrong forum.

Re: Analog Oscilloscope Headphone Jack

PostPosted: Mon Jul 30, 2018 2:38 am
by FlyMario
LOL! Have a laugh at my expense folks. Maybe I should check my probes switch. Grrrrrrr.... 10x