Re: Use a scope todetermineovervoltageneededforstepper motors

Jon,
Sure I agree 100%, I thought you referred to the super scope i.e. the $$$$$ version... Modern scope are just fine for capturing
single shot events, considering they do giga samples second... would take some real fast stepper motor to beat that....
I used the 465 for years, it's stable and is well made, and for everyday stuff it's good... I'm doing a lot of digital stuff and
signal are repetitive so my 4 channel Iwatsu works fine... Some time ago I had access to a paper recording oscilloscope, it could
shoot paper are 45 inches second, the paper came out horizontal as if it was levitating... Expensive to run. The light sensitive
paper was developed with UV and was good for several years if stored in the moderate light after the intial exposure.. It also had
32 channels... just another pile of junk, at over $120 for a 150 foot roll of paper it was not used that often...
hansw

Jon Elson wrote:

> From: Jon Elson <jmelson@...>
>
> hansw wrote:
>
> > From: hansw <hansw@...>
> >
> > Ward,
> > As you have your hands on this scope on a daily basis, ( I can only get to use one some times !) What I remember is I can
> > capture a fast event. I don't understand Jon's complaint that is can't do that... Even the $1195 item can do that... what am I
> > missing here...
>
> The message I replied to had a long list of old Tektronix analog scopes,
> like the 465, 475, 485, and so on. For repetitive signals, these scopes
> are fine, but for a single-shot event, like watching a circuit power up,
> or a servo amp handle a 3" move, they just don't cut it. I know!
> I struggled for years with a plain analog scope, trying to capture
> the information from the above mentioned sort of events by turning
> the brightness up and trying to mentally record the traces before
> the persistence faded. Ughh! I really don't want to do that again.
>
> Jon
>
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