A good digital oscilloscope?
in [Design]
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From: Joerg on 11 Dec 2009 14:24 krw wrote: > On Wed, 09 Dec 2009 07:38:37 -0800, Joerg <invalid(a)invalid.invalid> > wrote: > >> krw wrote: >>> On Tue, 08 Dec 2009 18:59:11 -0800, Joerg <invalid(a)invalid.invalid> >>> wrote: >>> >>>> krw wrote: >>>>> On Tue, 08 Dec 2009 14:36:53 -0500, Spehro Pefhany >>>>> <speffSNIP(a)interlogDOTyou.knowwhat> wrote: >>>>> >>>>>> On Tue, 08 Dec 2009 10:28:27 -0800, John Larkin >>>>>> <jjlarkin(a)highNOTlandTHIStechnologyPART.com> wrote: >>>>>> >>>>>>> On Mon, 7 Dec 2009 22:21:43 -0600, "Tim Williams" >>>>>>> <tmoranwms(a)charter.net> wrote: >>>>>>> >>>>>>>> "Jamie" <jamie_ka1lpa_not_valid_after_ka1lpa_(a)charter.net> wrote in message >>>>>>>> news:oFhTm.36236$kY2.31856(a)newsfe01.iad... >>>>>>>>> My Tek 485 serves me well. I do have a small assortment of digital scopes >>>>>>>>> for portable use to gather basic data and road trip testing how ever, I >>>>>>>>> find that my 485 still gives me nice results at the bench as long as I >>>>>>>>> don't need live digital storage. >>>>>>>>> It's the only scope I have that I can take full advantage of my active >>>>>>>>> Fet probes when I need them. >>>>>>>> 486 is on my Wish List. And 2465. Yessss, my preciousss.... >>>>>>>> >>>>>>>> >>>>>>>> Tim >>>>>>> I love our TPS2024. 200 MHz, and all four channels and the trigger >>>>>>> input are fully floating. Wanna clip the probe ground lead onto the >>>>>>> source of a fet that's flailing 400 volts off ground? No problem. >>>>>>> >>>>>>> John >>>>>> Shame about that antediluvian CF card slot that can't write to even a >>>>>> 2G card. 8-( >>>>> Beats waiting 3 minutes to write to floppy. >>>>> >>>> But wouldn't you think a scope of this day and age would come with a USB >>>> stick slot? I mean, it's been years now ... >>>> >>>> Mine did :-) >>> You'd think. AIUI, USB sticks are a PITA to write but the work only >>> has to be done once. >> >> My scope writes a screen shot onto a stick in less than a second. The >> nice thing is that they are ubiquitous, you can plug them into just >> about any PC unless it's really, really old. > > If I just save the "screen shot" it doesn't save any settings. The > file can be read back into the scope and the trace restored into > whatever setting are there. IOW, useless. > > The alternative is to dump memory to a CSV, all 64K samples. That > amounts to ~300KB. Done it at a client yesterday afternoon. You can select "save bitmap" or "save all". "Save all" will save the bitmap, the CSV and also the scope setup in a *.set file, at least on the Instek. You get three files instead of one. When connected to a PC you have more options, like only saving CSV or selecting a different storage format for the image (I prefer PNG). The PC software for the Instek says beta but I really like it because it allows me to view the screen on a large monitor. Saves me from switching glasses while alternating between SMT-soldering and measuring. -- Regards, Joerg http://www.analogconsultants.com/ "gmail" domain blocked because of excessive spam. Use another domain or send PM.
From: Joerg on 11 Dec 2009 14:27 Charlie E. wrote: > On Wed, 09 Dec 2009 18:59:14 -0800, Joerg <invalid(a)invalid.invalid> > wrote: > > >> Kids moving back in with their folks is almost normal these days. Every >> other neighbor has them, and usually two or even more. I'll never really >> understand that. I love my parents but couldn't imagine living with them >> now (unless they needed that for medical or old age reasons). > > We moved back in with the folks twice - each time for about two weeks. > The first, I had just graduated college and first moved to California. > Stayed at my parents while we got jobs and an apartment, maybe two to > three weeks. > > The second time was about 10 years later, and we tried to move to > Memphis. Stayed with her folds this time for about three weeks, while > I lined up a job and an apartment and tried to get into UofM. Had > been there just over a month when I finally got an appointment with > the dean of electrical engineering, and found out that there was no > chance of getting into UofM, so it was back to California! > That's pretty normal. I've also done that for a few weeks after army service was up. -- Regards, Joerg http://www.analogconsultants.com/ "gmail" domain blocked because of excessive spam. Use another domain or send PM.
From: Joerg on 11 Dec 2009 14:32 Joel Koltner wrote: > "Joerg" <invalid(a)invalid.invalid> wrote in message > news:7ob08jF3oortqU1(a)mid.individual.net... >> But wait, $600 for a Christmas gift? Ain't that a bit over the top? > > Only a little... I think that $250-$500 per kid for Xmas today is not at > all uncommon today... > >> As a kid I had to work for stuff like that. For example at a meat >> factory until I had the $400 for my first used and pretty banged up >> HW100 transceiver. > > I doubt you can legally work at a meat factory unless you're at least 18 > today. :-( > > If you want to see some kids with wealthy parents who are *seriously* > spoiled, check this out: > http://www.mtv.com/shows/sweet_16/episodes.jhtml . It's not uncommon on > that show for the parents to blow $25-$100k on their kid's 16th birthday! > > If I had the choice between a Lexus and, I dunno, a Civic and a bunch of > test equipment, I think it'd be obvious which I'd choose... > What I really don't understand is when a couple goes into big time debt just for the wedding ceremony, and often the bride's folks as well. I've heard of one couple who "had to" sell their home and move into an apartment to give their daughter an "appropriate" wedding. We made sure that neither of our parents had to pay anything and that our wedding ceremony was reasonable and could be comfortably paid from our savings (without raiding the account). Credit card use for the wedding was zilch. -- Regards, Joerg http://www.analogconsultants.com/ "gmail" domain blocked because of excessive spam. Use another domain or send PM.
From: John Larkin on 11 Dec 2009 15:53 On Fri, 11 Dec 2009 11:32:44 -0800, Joerg <invalid(a)invalid.invalid> wrote: >Joel Koltner wrote: >> "Joerg" <invalid(a)invalid.invalid> wrote in message >> news:7ob08jF3oortqU1(a)mid.individual.net... >>> But wait, $600 for a Christmas gift? Ain't that a bit over the top? >> >> Only a little... I think that $250-$500 per kid for Xmas today is not at >> all uncommon today... >> >>> As a kid I had to work for stuff like that. For example at a meat >>> factory until I had the $400 for my first used and pretty banged up >>> HW100 transceiver. >> >> I doubt you can legally work at a meat factory unless you're at least 18 >> today. :-( >> >> If you want to see some kids with wealthy parents who are *seriously* >> spoiled, check this out: >> http://www.mtv.com/shows/sweet_16/episodes.jhtml . It's not uncommon on >> that show for the parents to blow $25-$100k on their kid's 16th birthday! >> >> If I had the choice between a Lexus and, I dunno, a Civic and a bunch of >> test equipment, I think it'd be obvious which I'd choose... >> > >What I really don't understand is when a couple goes into big time debt >just for the wedding ceremony, and often the bride's folks as well. I've >heard of one couple who "had to" sell their home and move into an >apartment to give their daughter an "appropriate" wedding. > >We made sure that neither of our parents had to pay anything and that >our wedding ceremony was reasonable and could be comfortably paid from >our savings (without raiding the account). Credit card use for the >wedding was zilch. We got married in the rotunda of SF City Hall, on Valentine's Day, by a very nice lady in a black robe. Cost $20, but then we went to Stars Cafe and blew another $30 on lunch. Last marriage I attended, the 150 or so guests met at a fancy hotel. A fleet of fake cable cars took us across town to a chapel in the Presidio for the ceremony, then back to the Ferry Building for the reception. They took the whole top floor, free drinks, dinner by the Slanted Door. Must have cost $100K. We attended a surprise wedding on East Brother Island. We thought it was a picnic, until they told us to step around behind the lighthouse. There were the bride+groom+preacher, all dressed up for a wedding. I thought that was awfully considerate of them. John
From: Charlie E. on 11 Dec 2009 17:55
On Fri, 11 Dec 2009 11:32:44 -0800, Joerg <invalid(a)invalid.invalid> wrote: >Joel Koltner wrote: >> "Joerg" <invalid(a)invalid.invalid> wrote in message >> news:7ob08jF3oortqU1(a)mid.individual.net... >>> But wait, $600 for a Christmas gift? Ain't that a bit over the top? >> >> Only a little... I think that $250-$500 per kid for Xmas today is not at >> all uncommon today... >> >>> As a kid I had to work for stuff like that. For example at a meat >>> factory until I had the $400 for my first used and pretty banged up >>> HW100 transceiver. >> >> I doubt you can legally work at a meat factory unless you're at least 18 >> today. :-( >> >> If you want to see some kids with wealthy parents who are *seriously* >> spoiled, check this out: >> http://www.mtv.com/shows/sweet_16/episodes.jhtml . It's not uncommon on >> that show for the parents to blow $25-$100k on their kid's 16th birthday! >> >> If I had the choice between a Lexus and, I dunno, a Civic and a bunch of >> test equipment, I think it'd be obvious which I'd choose... >> > >What I really don't understand is when a couple goes into big time debt >just for the wedding ceremony, and often the bride's folks as well. I've >heard of one couple who "had to" sell their home and move into an >apartment to give their daughter an "appropriate" wedding. > >We made sure that neither of our parents had to pay anything and that >our wedding ceremony was reasonable and could be comfortably paid from >our savings (without raiding the account). Credit card use for the >wedding was zilch. Ah, Jeorg, we are so much alike! When we got married, we were still in college, so had a small ceremony there. We paid for the flowers, the photos (a real mess, but then we were young then, and didn't know to get things in writing!) the cakes, etc. We didn't even HAVE a credit card at the time! Her folks helped out on some of the expenses, and her mom made the dress. I just rented a tux. It was simple, and inexpensive, and still very memorable! Charlie |