Align the trace to the reference line. Set the scope to DC coupling. Touch the probe to the 12v power supply positive terminal. You want the setting that makes it deflect ~2.5 divisions. That should be 5v/div.
For the timebase, I'd suggest starting at 2mS. You won't be able to see individual pulses but it will be easier to see if anything happens. If you have pulses, set the timebase to whatever it need to be to see 3-4 full cycles.
For the timebase, I'd suggest starting at 2mS. You won't be able to see individual pulses but it will be easier to see if anything happens. If you have pulses, set the timebase to whatever it need to be to see 3-4 full cycles.
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