low-end scope
in [Design]
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From: miso on 2 Mar 2010 00:08 On Mar 1, 12:32 pm, John Larkin <jjlar...(a)highNOTlandTHIStechnologyPART.com> wrote: > On Mon, 01 Mar 2010 11:27:08 -0800, VWWall <vw...(a)large.invalid> > wrote: > > > > >John Larkin wrote: > > >> I'd like to have a low-end scope or two to keep around the house, > >> occasional use only. I could use it at work, too, for simple analog > >> stuff, timing software execution, stuff like that. > > >> I was think about a Rigol DS1052E, 50 MHz color, 2 traces, about $535. > >> Or something like that. Any suggestions or comments? > > >How about one of those scopes that plug into the USB socket of your > >computer? > > >saelig competes with Rigol, and has PC scopes as well: > > >http://www.saelig.com/category/PSPCEL.htm > > >Just a thought. With the price of net-book type PC's as low as it is, a > >separate PC just for test equipment use might be economical. > > I'd rather not have a scope that runs Windows and that needs two > boxes, drivers, a USB cable, and a mouse to do anything. A real scope > will most likely still be working 20 years from now. I like real > scopes with lots of real knobs. > > A USB scope would make sense in some data-centric application where > the waveform needs to be shipped into Matlab or some such in real > time. > > John http://www.bitscope.com/ has linux and windows. Personally, I'd get a used pre-Chinese Tek scope. DeAnza and Livermore swap meets will be starting up soon.
From: miso on 2 Mar 2010 00:10 On Mar 1, 4:49 pm, Joerg <inva...(a)invalid.invalid> wrote: > Jan Panteltje wrote: > > On a sunny day (Mon, 01 Mar 2010 15:30:11 -0800) it happened John Larkin > > <jjlar...(a)highNOTlandTHIStechnologyPART.com> wrote in > > <h5joo5tu7iv486nr7g4pp69r0vpco1c...(a)4ax.com>: > > >> I've gotten used to small, light, color digital scopes > > > Mine has color too: Green. > > Mine even glows in the dark. Now that's something DSOs can't do :-) > > -- > Regards, Joerg > > http://www.analogconsultants.com/ > > "gmail" domain blocked because of excessive spam. > Use another domain or send PM. The old HP scope cameras had UV lights in the to illuminate the graticle.
From: Jan Panteltje on 2 Mar 2010 07:56 On a sunny day (Mon, 01 Mar 2010 17:46:33 -0800) it happened John Larkin <jjlarkin(a)highNOTlandTHIStechnologyPART.com> wrote in <r4roo5dd2mjre06t8glvpun5dc9hgu9p53(a)4ax.com>: >On Mon, 01 Mar 2010 16:49:54 -0800, Joerg <invalid(a)invalid.invalid> >wrote: > >>Jan Panteltje wrote: >>> On a sunny day (Mon, 01 Mar 2010 15:30:11 -0800) it happened John Larkin >>> <jjlarkin(a)highNOTlandTHIStechnologyPART.com> wrote in >>> <h5joo5tu7iv486nr7g4pp69r0vpco1cnuc(a)4ax.com>: >>> >>>> I've gotten used to small, light, color digital scopes >>> >>> Mine has color too: Green. >> >> >>Mine even glows in the dark. Now that's something DSOs can't do :-) > >Yeah, but how long can you hold it out at arm's length? > >Now whenever I use an analog scope - which is seldom - I get confused >about which trace is which. I don't miss black+white TV sets, or >typewriters and carbon paper, or analog VOMs, or slide rules, or 300 >baud acoustic modems either. > >John Wow, and that from somebody who swears by writing and drawing on deads trees :-) And I do not miss the noise of that horrible Tek digital I once had to use for audio.
From: Jan Panteltje on 2 Mar 2010 07:57 On a sunny day (Mon, 01 Mar 2010 18:04:00 -0800) it happened Joerg <invalid(a)invalid.invalid> wrote in <7v3a0kFvimU1(a)mid.individual.net>: >John Larkin wrote: >> On Mon, 01 Mar 2010 16:49:54 -0800, Joerg <invalid(a)invalid.invalid> >> wrote: >> >>> Jan Panteltje wrote: >>>> On a sunny day (Mon, 01 Mar 2010 15:30:11 -0800) it happened John Larkin >>>> <jjlarkin(a)highNOTlandTHIStechnologyPART.com> wrote in >>>> <h5joo5tu7iv486nr7g4pp69r0vpco1cnuc(a)4ax.com>: >>>> >>>>> I've gotten used to small, light, color digital scopes >>>> Mine has color too: Green. >>> >>> Mine even glows in the dark. Now that's something DSOs can't do :-) >> >> Yeah, but how long can you hold it out at arm's length? >> >> Now whenever I use an analog scope - which is seldom - I get confused >> about which trace is which. I don't miss black+white TV sets, or >> typewriters and carbon paper, or analog VOMs, or slide rules, or 300 >> baud acoustic modems either. >> > >When you do noise debugging as much as I do you'd be glad analog scopes >are still around. Not that it's always fun but someone has got to do the >job. One client instantly bought a Tek 2465 after they saw me working on >their stuff. They had spent weeks with a Tek DSO and not found the >problem, and neither could I until I got a "real" scope out of the trunk. > >-- >Regards, Joerg Exactly!
From: John Larkin on 2 Mar 2010 09:57
On Mon, 1 Mar 2010 21:08:45 -0800 (PST), "miso(a)sushi.com" <miso(a)sushi.com> wrote: >On Mar 1, 12:32�pm, John Larkin ><jjlar...(a)highNOTlandTHIStechnologyPART.com> wrote: >> On Mon, 01 Mar 2010 11:27:08 -0800, VWWall <vw...(a)large.invalid> >> wrote: >> >> >> >> >John Larkin wrote: >> >> >> I'd like to have a low-end scope or two to keep around the house, >> >> occasional use only. I could use it at work, too, for simple analog >> >> stuff, timing software execution, stuff like that. >> >> >> I was think about a Rigol DS1052E, 50 MHz color, 2 traces, about $535. >> >> Or something like that. Any suggestions or comments? >> >> >How about one of those scopes that plug into the USB socket of your >> >computer? >> >> >saelig competes with Rigol, and has PC scopes as well: >> >> >http://www.saelig.com/category/PSPCEL.htm >> >> >Just a thought. �With the price of net-book type PC's as low as it is, a >> >separate PC just for test equipment use might be economical. >> >> I'd rather not have a scope that runs Windows and that needs two >> boxes, drivers, a USB cable, and a mouse to do anything. A real scope >> will most likely still be working 20 years from now. I like real >> scopes with lots of real knobs. >> >> A USB scope would make sense in some data-centric application where >> the waveform needs to be shipped into Matlab or some such in real >> time. >> >> John > >http://www.bitscope.com/ >has linux and windows. > >Personally, I'd get a used pre-Chinese Tek scope. DeAnza and Livermore >swap meets will be starting up soon. I used to get up before dawn to go to the Foothill flea market, but ebay kind of killed it off. One met personalities there... Jim Williams, Bob Pease, Peter Alfke. John |