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From: Bill Sloman <bill.sloman@ieee.org>
Newsgroups: sci.electronics.design
Subject: Re: Instead scopes
Date: Sat, 31 Aug 2024 16:03:39 +1000
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On 31/08/2024 3:14 am, john larkin wrote:
> On Fri, 30 Aug 2024 14:17:14 +1000, Bill Sloman <bill.sloman@ieee.org>
> wrote:
> 
>> On 30/08/2024 4:59 am, john larkin wrote:
>>> On Thu, 29 Aug 2024 20:23:19 +1000, Bill Sloman <bill.sloman@ieee.org>
>>> wrote:
>>>
>>>> On 29/08/2024 2:32 am, john larkin wrote:
>>>>> 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.
>>>>
>>>> Or a least to be able to react to John Larkin's insultingly trivial
>>>> questions in a way that leaves him thinking that.
>>>>
>>>> Maybe he didn't understand the answers.
>>>
>>> You're impossible to talk too. Your only motivation is to insult.
>>
>> If your idea of a conversation is one where you get flattered nonstop,
>> I'm not the ideal conversational partner.
>>
> 
> My idea of good conversation is a group of people playing with ideas
> and inventing stuff together. "Egoless" is the word, as in "egoless
> programming."
> 
> https://en.wikipedia.org/wiki/Egoless_programming
> 
> I don't think you can do that. Some people are too fragile.

Your opinion is noted. I doubt if the people with whom I have 
collaborated would agree.

Sloman A.W., Buggs P., Molloy J., and Stewart D. “A 
microcontroller-based driver to stabilise the temperature of an optical 
stage to 1mK in the range 4C to 38C, using a Peltier heat pump and a 
thermistor sensor” Measurement Science and Technology, 7 1653-64 (1996)

Jim Molloy has died, but Paul Buggs and Doug Stewart are still around. 
You could ask them.

http://sophia-elektronica.com/At_Cambridge.html

presents three years of my weekly reports when I was acting as a senior 
electronic engineer in the advanced electron beam tester project - they 
eventually went to everybody working on the team, though they were 
directed to the project manager. This was a bit odd, but my ego didn't 
have anything to do with it.

I knew some ego-driven engineers who tried to patent every bright idea 
that they though that they had had. I've only got three patents and one 
of them had struck me as obvious, so I hadn't thought to patent it until 
I'd had to explain it to enough people to let me realise that it wasn't 
all that obvious.

-- 
Bill Sloman, Sydney