Path: ...!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail
From: Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net>
Newsgroups: sci.electronics.design
Subject: Re: Instead scopes
Date: Sun, 1 Sep 2024 17:55:58 -0000 (UTC)
Organization: A noiseless patient Spider
Lines: 43
Message-ID: <vb29rd$1isoo$1@dont-email.me>
References: <4vtrcjpl9sp0lurrtf3ldcmhm58de156oo@4ax.com>
 <val7f8$33hu3$1@dont-email.me>
 <8f2tcj1832r0m6872hvp1fcrv8hsf3chsh@4ax.com>
 <vam90i$3bn2f$1@dont-email.me>
 <gjeucj5a7skeruudj8qcujc1f9b9t9o26r@4ax.com>
 <vanf8s$3h5er$1@dont-email.me>
 <mtjucjdqe2f91c2jsjp6011k0uvakuimog@4ax.com>
 <vap20i$1s5cl$1@solani.org>
 <8dv0djhj73b0ejudpkahnojgjk30i9rrbv@4ax.com>
 <je01dj177m9p0q25en4k2jm8u0bsj07t2j@4ax.com>
 <vaq1f2$jdj$1@dont-email.me>
 <vaq762$1ssg1$1@solani.org>
 <vb163a$1dt9b$1@dont-email.me>
 <0ns8djtqe7ct4k21h8ubnj944fonq9i0u0@4ax.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Injection-Date: Sun, 01 Sep 2024 19:55:58 +0200 (CEST)
Injection-Info: dont-email.me; posting-host="da102a9bf85a51f32a024c3bf3261127";
	logging-data="1667864"; mail-complaints-to="abuse@eternal-september.org";	posting-account="U2FsdGVkX1/qDdrMmvY++jNM+b/QLjjH"
User-Agent: NewsTap/5.5 (iPhone/iPod Touch)
Cancel-Lock: sha1:YkCyXzE9K06bxU8m6oF0XAs6SZw=
	sha1:YWjk6AV0IUD8pVtQcrFxN+sYbfc=
Bytes: 3162

john larkin <jlarkin_highland_tech> wrote:
> On Sun, 1 Sep 2024 17:45:46 +1000, Bill Sloman <bill.sloman@ieee.org>
> wrote:
> 
>> On 30/08/2024 2:21 am, Jan Panteltje wrote:
>>> On a sunny day (Fri, 30 Aug 2024 00:43:39 +1000) it happened Bill Sloman
>>> <bill.sloman@ieee.org> wrote in <vaq1f2$jdj$1@dont-email.me>:
>>> 
>>>> It's lot easier and quicker to bread-board a circuit in LTSpice than it
>>>> is to wire up a test circuit, but what that means is that you need to
>>>> make fewer real circuits and they are a lot more likely to work when tested.
>>>> 
>>>> That, on it's own, is enough to explain why labs look different today
>>>> than they did in the dark ages.
>>> 
>>> All it explains is boeings falling apart and astronuts ending up stuck at the ISS
>>> and no moonlanding from the US, not even a probe.
>>> Slimulations are _not_ realty and never will be.
>> 
>> But they can capture useful parts of reality, if you know what you are 
>> doing.
>> 
>> John Larkin's simulated inductors tend not to have any parallel capacitance.
> 
> The trick is to know when it matters. ESR and core loss are usually
> more important.
> 
> I designed this surface-mount inductor for my Pockels Cell driver,
> after several tries using commercial parts. They all smoked.
> 
> It's wound on a specially marked Sharpie pen that we have carefully
> reserved.

It better have a regular calibration schedule, or your semiconductor
customers may give you the raised eyebrow. 

Cheers 

Phil Hobbs 

-- 
Dr Philip C D Hobbs  Principal Consultant  ElectroOptical Innovations LLC /
Hobbs ElectroOptics  Optics, Electro-optics, Photonics, Analog Electronics