A good digital oscilloscope?
in [Design]
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From: qrk on 7 Dec 2009 14:56 On Sun, 06 Dec 2009 20:29:24 -0800, John Larkin <jjlarkin(a)highNOTlandTHIStechnologyPART.com> wrote: >On Sun, 6 Dec 2009 22:18:04 -0600, "Tim Williams" ><tmoranwms(a)charter.net> wrote: > >>I never was too impressed with digital scopes. None of them have nearly >>enough buttons, so you spend all your time wading through menus. The Rigol >>I've used (don't remember the number) has awful menus, they are not always >>quite what they say they are, and they take forever to go away. >> >>Some digital scopes have better refresh than others. The HP (Agilent??) >>54622D's in all the labs at school here work fairly well, though at least >>two button presses are required to reach any given menu option. Refresh is >>okay, though still chunky on slower sweeps (>1ms/div). >> >>My impression of the cheapass Tek TDS's (the thin rectangular ones) is >>similar to the Rigol. >> >>I'm most familiar with my Tek 475, but it would be nice to have storage, >>single sweep* and averaging. One of those intermediate scopes, the ones >>with analog AND digital, they're perfect for everything. >> >>*Just because it's an analog scope doesn't mean you don't get storage or >>single sweep type readings, it just means it takes more setup. This >>photograph was taken with a 10 second exposure, capturing three photoflash >>discharges: >>http://webpages.charter.net/dawill/Images/Photoflash_Discharge2_sm.jpg >> >>Tim > >I like my TDS2012. I rarely use an analog scope any more. > >John I find that I use an analog scope (Tek 465) for analog stuff. Can't get a feeling for noise issues with a digital scope. For pulse amplifier stuff and when you need arithmetic, digital is the way to go. -- Mark
From: Nico Coesel on 7 Dec 2009 15:35 "Tim Williams" <tmoranwms(a)charter.net> wrote: >I never was too impressed with digital scopes. None of them have nearly >enough buttons, so you spend all your time wading through menus. The Rigol >I've used (don't remember the number) has awful menus, they are not always >quite what they say they are, and they take forever to go away. > >Some digital scopes have better refresh than others. The HP (Agilent??) >54622D's in all the labs at school here work fairly well, though at least >two button presses are required to reach any given menu option. Refresh is >okay, though still chunky on slower sweeps (>1ms/div). Same here. I still can't get myself to replace my Tek2230. Its digital and analog and yet very simple to operate. -- Failure does not prove something is impossible, failure simply indicates you are not using the right tools... "If it doesn't fit, use a bigger hammer!" --------------------------------------------------------------
From: Joerg on 7 Dec 2009 16:19 Jan Panteltje wrote: > On a sunny day (Sun, 6 Dec 2009 22:18:04 -0600) it happened "Tim Williams" > <tmoranwms(a)charter.net> wrote in <hfhvm1$bp$1(a)news.eternal-september.org>: > >> *Just because it's an analog scope doesn't mean you don't get storage or >> single sweep type readings, it just means it takes more setup. This >> photograph was taken with a 10 second exposure, capturing three photoflash >> discharges: >> http://webpages.charter.net/dawill/Images/Photoflash_Discharge2_sm.jpg >> >> Tim > > That is only a simple example, analog scopes can do far more then that: > http://panteltje.com/panteltje/scope_tv/index.html > And that one is 30 years old, and only 10MHz, Nice. Problem is there aren't that many scopes with a Z-input anymore. That Trio scope must be older than 30. Probably like my Hameg 8MHz scope that is now around 35. No trigger, just a "synchronizer". Judging by the DVD you are watching there I assume you must have grandkids :-) -- Regards, Joerg http://www.analogconsultants.com/ "gmail" domain blocked because of excessive spam. Use another domain or send PM.
From: Jan Panteltje on 7 Dec 2009 17:37 On a sunny day (Mon, 07 Dec 2009 13:19:02 -0800) it happened Joerg <invalid(a)invalid.invalid> wrote in <7o59q9F3ojf48U1(a)mid.individual.net>: >Jan Panteltje wrote: >> On a sunny day (Sun, 6 Dec 2009 22:18:04 -0600) it happened "Tim Williams" >> <tmoranwms(a)charter.net> wrote in <hfhvm1$bp$1(a)news.eternal-september.org>: >> >>> *Just because it's an analog scope doesn't mean you don't get storage or >>> single sweep type readings, it just means it takes more setup. This >>> photograph was taken with a 10 second exposure, capturing three photoflash >>> discharges: >>> http://webpages.charter.net/dawill/Images/Photoflash_Discharge2_sm.jpg >>> >>> Tim >> >> That is only a simple example, analog scopes can do far more then that: >> http://panteltje.com/panteltje/scope_tv/index.html >> And that one is 30 years old, and only 10MHz, > > >Nice. Problem is there aren't that many scopes with a Z-input anymore. >That Trio scope must be older than 30. Probably like my Hameg 8MHz scope >that is now around 35. No trigger, just a "synchronizer". > >Judging by the DVD you are watching there I assume you must have >grandkids :-) Bought it new in 1979 or 1980, that makes 30... Been on 8/6 for many many years, timebase is a 555, replaced it once. Z input is nice to have. Repaired thousands of TVs with it, no kidding. TRIO CS-1562A Lost the diagram unfortunately, anyone has it? Websearch came out empty. Its a nice scope, good TV trigger, dual channel. Graticule is broken...
From: Joerg on 7 Dec 2009 17:44
Jan Panteltje wrote: > On a sunny day (Mon, 07 Dec 2009 13:19:02 -0800) it happened Joerg > <invalid(a)invalid.invalid> wrote in <7o59q9F3ojf48U1(a)mid.individual.net>: > >> Jan Panteltje wrote: >>> On a sunny day (Sun, 6 Dec 2009 22:18:04 -0600) it happened "Tim Williams" >>> <tmoranwms(a)charter.net> wrote in <hfhvm1$bp$1(a)news.eternal-september.org>: >>> >>>> *Just because it's an analog scope doesn't mean you don't get storage or >>>> single sweep type readings, it just means it takes more setup. This >>>> photograph was taken with a 10 second exposure, capturing three photoflash >>>> discharges: >>>> http://webpages.charter.net/dawill/Images/Photoflash_Discharge2_sm.jpg >>>> >>>> Tim >>> That is only a simple example, analog scopes can do far more then that: >>> http://panteltje.com/panteltje/scope_tv/index.html >>> And that one is 30 years old, and only 10MHz, >> >> Nice. Problem is there aren't that many scopes with a Z-input anymore. >> That Trio scope must be older than 30. Probably like my Hameg 8MHz scope >> that is now around 35. No trigger, just a "synchronizer". >> >> Judging by the DVD you are watching there I assume you must have >> grandkids :-) > > Bought it new in 1979 or 1980, that makes 30... > Been on 8/6 for many many years, timebase is a 555, replaced it once. > Z input is nice to have. > Repaired thousands of TVs with it, no kidding. > TRIO CS-1562A > Lost the diagram unfortunately, anyone has it? Websearch came out empty. Here ya go, with manual, pretty much the first web search hit :-) The schematic is on page 27, typical Japanese style, all crammed into one rather small page: http://www.casa.co.nz/Equipment/Scope/Trio-CS1562A-Man-A3-16p.pdf > Its a nice scope, good TV trigger, dual channel. > Graticule is broken... How did that happen? Grandkids playing too rough? -- Regards, Joerg http://www.analogconsultants.com/ "gmail" domain blocked because of excessive spam. Use another domain or send PM. |