I played with sound card scopes for a while. There great for visualizing a
waveform, ok for checking timing issues, and useless for level
measurements.

Keep in mind that they use a standard sound card, that limits their
sampling rate to about 44kHz (depending on the card). And between the AC
coupled inputs and internal AGC... Let's just say it has limited
usefulness.

For someone just getting started and wanting to see what a RC charge curve
looks like on a 555, it's fine. But for even a moderately involved hobbyist
I'd recommend a $50 eBay special.


I seem to recall reading an article where someone had modified a card to
bypass the AC coupling and the AGC (software hack, I think), but you're
still left with a 44kHz sampling freq.


> http://polly.phys.msu.su/~zeld/oscill.html
>
> Anybody who have experience on using this?
> Anybody who can demonstrate how exactly I can use it?
> What are the disadvantages from the expensive stand alone digital
> storage oscilloscope?
>
>
> Thanks!
> Novice
>
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