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From: Jan Panteltje <alien@comet.invalid>
Newsgroups: sci.electronics.design
Subject: Re: Instead scopes
Date: Thu, 29 Aug 2024 16:15:59 GMT
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On a sunny day (Thu, 29 Aug 2024 07:16:58 -0700) it happened john larkin
<jlarkin_highland_tech> wrote in <je01dj177m9p0q25en4k2jm8u0bsj07t2j@4ax.com>:

>On Thu, 29 Aug 2024 06:55:15 -0700, john larkin
><jlarkin_highland_tech> wrote:
>
>>On Thu, 29 Aug 2024 05:46:54 GMT, Jan Panteltje <alien@comet.invalid>
>>wrote:
>>
>>>On a sunny day (Wed, 28 Aug 2024 09:32:58 -0700) it happened john larkin
>>><jlarkin_highland_tech> wrote in <mtjucjdqe2f91c2jsjp6011k0uvakuimog@4ax.com>:
>>>
>>>>On Wed, 28 Aug 2024 15:21:00 -0000 (UTC), Sergey Kubushyn
>>>><ksi@koi8.net> wrote:
>>>>
>>>>>john larkin <jlarkin_highland_tech> wrote:
>>>>>> On Wed, 28 Aug 2024 04:28:02 -0000 (UTC), Sergey Kubushyn
>>>>>> <ksi@koi8.net> wrote:
>>>>>> 
>>>>>>>john larkin <jlarkin_highland_tech> wrote:
>>>>>>>> On Tue, 27 Aug 2024 14:55:32 -0400 (EDT), Martin Rid
>>>>>>>> <martin_riddle@verison.net> wrote:
>>>>>>>> 
>>>>>>>>>john larkin <jlarkin_highland_tech> Wrote in message:r
>>>>>>>>>> On Tue, 27 Aug 2024 10:40:15 -0400 (EDT), Martin Rid<martin_riddle@verison.net> wrote:>Anyone own the gds-1202b
>>>>>>>>>> ?>>Any
>>>>>>>>>> good?>>$350 at tequipment>>CheersI haven't tried that one. We like the Rigols.I recently acquired a
>>>>>>>>>> Siglenthttps://www.amazon.com/gp/product/B06XZML6RD/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1and gave it to one
>>>>>>>>>> of my engineers. I'll ask him how he
>>>>>>>>>> likes it.It has an up-front DEFAULT button, which a digital scope needs to getyou out of nightmare states.
>>>>>>>>>
>>>>>>>>>Other than the lack of software features,  the 200mhz bw for 350
>>>>>>>>> dollars is intriguing. 
>>>>>>>>>
>>>>>>>>>Cheers
>>>>>>>> 
>>>>>>>> It sounds pretty good to me.
>>>>>>>> 
>>>>>>>> https://siglentna.com/wp-content/uploads/dlm_uploads/2020/02/SDS1000X-E_DataSheet_DS0101E-E04C.pdf
>>>>>>>> 
>>>>>>>> What's missing?
>>>>>>>> 
>>>>>>>> I like the 500 uV/div.
>>>>>>>
>>>>>>>If you want to save the last penny, maybe. But you can get way better scope
>>>>>>>for slightly more -- Rigol DHO800/DHO900. It is 12-bit, same 550uV/div, has
>>>>>>>all standard serial protocols decoding, very light and compact, can work
>>>>>>>from a battery with USB-C power connector, way better than that Siglent that
>>>>>>>feels like relic next to those DHOs.
>>>>>> 
>>>>>> We use almost all Rigols at work. My slow bench scope is a 500 MHz
>>>>>> DS4034 (upgraded from 350 MHz)
>>>>>> 
>>>>>> https://www.dropbox.com/scl/fo/ns08x686afbayjsw8c2ab/h?rlkey=iu4h89057t755pueg4ijnldbo&dl=0
>>>>>> 
>>>>>> and my fast scope is a Tek 11802 sampler.
>>>>>
>>>>>I also have one, 11801C. Couple of SD-24s, SD-20, and SD-22 heads :)
>>>>
>>>>At the original purchase price, adjusted for inflation, I must have
>>>>half a million dollars worth of sampling heads.
>>>>
>>>>The color grading and jitter measurement is great on the 11801C, but
>>>>the old B+W screens photograph better.
>>>>
>>>>I'll miss my 11802 when it eventually dies.
>>>>
>>>>The TDR is great. I'm going to give my new kids a lecture on
>>>>transmission lines, and I'll show them some TDR.
>>>>
>>>>It is apparently possible these days to get an EE degree and be
>>>>completely ignorant of transmission lines. Or even electricity.
>>>
>>>oops!
>>>
>>>Then what DO they know?
>>
>>How to type c++
>
>One issue here is that it's cheaper and easier to teach coding, than
>it is to teach electronics.
>
>I walked through the Cornell EE school. I saw about 25 computer
>screens and one oscilloscope.

In the school where I was we had plenty of scopes and stuff.
Some teachers were very old, from before the transistor age...
The concensus was that 'only true hobbyists make it'
I think we started with 2 classes of 30, we had 6 at the final exams that had passed at the party
I did 2 exams at the same time, one from te gov and one from the school.
I remember one question 'draw a PCB for this transistor circuit'
does that still happen?
I thought it was fun:-)
Computers? There were none..
Calculators yes.