Are these things I should consider bad

[TinCanAlley]

Originally Posted by jr_tech

That is correct, the "10x" is the *attenuation* factor, not a multiplier. It was not clear that you were reporting the actual voltages of the circuit or the amplitude seen on the scope, with or without taking into account the 10x *attenuation* of the probe, or worse still using the "10x" as a multiplier.
So "b" is the correct answer to my question... agree?

Now, where do you set the baseline "0 volts" before probing a DC voltage? If probing a positive voltage, I set the baseline to the lowest line on the 'scope face and count divisions up from there after the DC is applied to the probe. If unsure of polarity, I set the baseline (with no voltage applied) to the center graticule line and see which way the trace goes when probing the voltage.

jr

Yes, if the dial is set to 10 and the probe is on 10, then the display is 100 per division. I edited my original post to reflect the probe and dial setting.

For the DC I put set it to GND and moved the trace to the bottom of the screen and then switched to DC. It moved up as it was positive. Since the DC was showing a waveform, I moved the baseline to the top of the first division so it would show the entire waveform.