| Products > Test Equipment |
| Choosing an oscilloscope |
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| tggzzz:
--- Quote from: 2N3055 on October 13, 2020, 10:23:15 am --- --- Quote from: tggzzz on October 13, 2020, 09:54:04 am --- You know nothing about my background and experience, nor my views on digitising and digital scopes. But that seems not to stop you shouting your preconceptions in a long rant that I've omitted for everybody's sanity. For the record I've been using digitising scopes for >40 years and digital scopes for >30 years. I've also had long discussions with the person who had (and was continuing to) design HP's high-end digitisers. I am perfectly happy to use a decent digitising scope; the modern ones do their job well, even if there are extra subtleties that catch out the unwary. --- End quote --- I don't know anything about you except what you write here on the blog... All I see is you recommending how great idea is to push an analog scope at unwary beginners "because it is good for their soul" or whatever.. --- End quote --- You are fantasising. Please indicate where I have advocated that position - or don't make such statements. --- Quote ---And as I read many of your posts (most of them being pure gold) i do believe you know very much about every type of scope there is in existence.. --- End quote --- More passive-aggressive nonsense. There are far more things that I don't know than I do know. I temper my statements to reflect that. --- Quote ---In fact, you know so much, that you forget how little beginners know... You know, those people that find single transistor amplifier overvelmighly complicated... I know, I'm sure guilty of that too. --- End quote --- Except I teach absolute beginners how to use a scope. --- Quote ---It's just, fact is, old analog scopes are museum pieces. --- End quote --- That is your prejudice. A working scope is useful, no matter what its age. --- Quote ---They reached status of oldtimer cars. Sure there are many vintage cars people keep running and eve use as daily drivers. Old vintage car might be a good car for a beginner mechanic. Not for a beginner driver. Good first cheap computer for beginner programer is Raspberry PI, or any cheap moden PC, not vintage IBM PC XT, good first car for beginner driver is few year old small Toyota Yaris bought with at least minimum warranty, and good first scope for an absolute beginner is cheap modern DSO. --- End quote --- More nonsense and unhelpful analogies. If you want such analogies, try using aircraft - where many 1950s/1960s/1070s aircraft are used to train ab-initio pilots due to their excellent and predictable handling characteristics. |
| PixieDust:
My second hand Tek scope has a bad pot, so sometimes I have to reboot it (can you reboot an analogue scope?). Plus I had to replace some caps that blew. So second hand is certainly not free of problems. |
| 0culus:
--- Quote from: BravoV on October 13, 2020, 02:50:57 pm --- --- Quote from: george.b on October 13, 2020, 04:13:49 am ---That's pretty brutal. What's the story there? --- End quote --- LOL >:D yeah, it was bought many years ago from Israeli's seller that sell T&M equipments that looked like they're ran over by tank in war zone. :palm: I was lucky on the timing, that the seller was going to close their shop put everything on big sale, and offered me these gems for a good bargain. --- End quote --- Oh man, I remember that seller. Everything looked like it had either been driven over or in a shipwreck. So bizarre. :palm: |
| 0culus:
--- Quote from: SilverSolder on October 13, 2020, 02:44:27 pm --- --- Quote from: 0culus on October 13, 2020, 03:04:41 am ---[...] I really don't get this almost cult-like belief around here that beginners are to be coddled and spoonfed and protected from–God forbid–having to learn to fix old gear. [...] --- End quote --- Doesn't it all depend on the beginner? It's like with cars: Some guys are better off buying a new car, if they are more interested in driving than fixing cars. They might be inept at fixing cars, yet be a pretty good driver... and vice versa! Or, consider the relationship between a pianist and a piano tuner... In other words, a good decision could mean either buying a new or a used scope, depending... on you! :D --- End quote --- That's exactly the point I was trying to make! This forum has a "one size fits all" mentality on this subject in particular, and it's :bullshit: !! |
| 0culus:
--- Quote from: David Hess on October 13, 2020, 08:36:35 am --- --- Quote from: 0culus on October 12, 2020, 11:31:43 pm ---CROs, due to the exact relationship between the crt trace and the input, have a level of tactile-ness that DSOs can't match. --- End quote --- I disagree; there is nothing which prevents a DSO from responding to user controls with a latency of one display frame, which is fast enough to be visually indistinguishable, except poor design. --- End quote --- My point still stands, however, because the only DSO I've used where that is the case are MegaZoom models from HPAK. Everything else has enough latency between twiddling the rotary encoders and seeing the update on the screen that it is quite jarring. |
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