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From: "Edward Rawde" <invalid@invalid.invalid>
Newsgroups: sci.electronics.design
Subject: Re: LT Spice looks
Date: Thu, 14 Nov 2024 13:04:02 -0500
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"Liz Tuddenham" <liz@poppyrecords.invalid.invalid> wrote in message news:1r30wod.ghq70f1dxlmvrN%liz@poppyrecords.invalid.invalid...
> Edward Rawde <invalid@invalid.invalid> wrote:
>
>> "Liz Tuddenham" <liz@poppyrecords.invalid.invalid> wrote in message
>> news:1r30v1o.1i0ovwuasvnl4N%liz@poppyrecords.invalid.invalid...
>> Edward
>> Rawde <invalid@invalid.invalid> wrote: >
>> >> "Liz Tuddenham" <liz@poppyrecords.invalid.invalid> wrote in message
>> >> news:1r307zo.v2hb321oo3t6gN%liz@poppyrecords.invalid.invalid... > Edward
>> >> Rawde <invalid@invalid.invalid> wrote: > > [...]
>> >> >>
>> >> >> If the netlist and PCB layout is correct then why waste time on
>> >> >> making the schematic look like you want it, only to be told by
>> >> >> someone else that they would have drawn it completely differently?
>> >> >
>> >> > If you were a service engineer with the customer breathing down your
>> >> > neck, which diagram would you prefer, 'A' or 'B' ?
>> >> >
>> >> > http://www.poppyrecords.co.uk/other/CircuitDiagrams.gif
>> >>
>> >> When I was a service engineer there was no such thing as a schematic and I
>> >> often had to make do without a circuit diagram at all. On rare occasions a
>> >> repair had to wait for a circuit diagram to arrive by post and when it did
>> >> it could easily contain circuit A.
>> >>
>> >> I'm not suggesting that your B layout isn't preferable but in the real
>> >> world A will often be encountered.
>> >
>> >
>> > I suppose it depends on whether it was drawn by a wireman or by the
>> > designer.  Small firms often benefit from more direct contact between
>> > the designer and the user or repairer.
>>
>> Many circuit diagrams I encountered were clearly not drawn by the
>> designer. Another issue with circuit diagrams from times gone by would be
>> a line which went nowhere because it joined to a line on another page
>> which may or may not be easy to find.
>
> I try to draw my circuits as one big drawing, but if I can't, I try to
> make the lines from one section to another appear in the same order down
> the page with clear lettering or numbering (and possibly a bracket
> around them with a legend to say where they go).  I'm usually the person
> who will have to make sense of them years later, so I feel I should
> leave clear instructions to myself so I can see what I was doing.

That's fine if you can do it.
Most people aren't good at tidying up afterwards which is why software is full of memory leaks.
It's not possible to do much about human nature.
My collection of
https://www.amazon.com/RADIO-TELEVISION-SERVICING-1968-69-MODELS/dp/B0011WHZYA
contains all possible examples of circuit diagram style but it has been gathering dust for at least 40 years by now.

>
>
> -- 
> ~ Liz Tuddenham ~
> (Remove the ".invalid"s and add ".co.uk" to reply)
> www.poppyrecords.co.uk