Sujet : Re: LT Spice looks
De : invalid (at) *nospam* invalid.invalid (Edward Rawde)
Groupes : sci.electronics.designDate : 14. Nov 2024, 18:21:45
Autres entêtes
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"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.
>
The drawing office in one firm I worked for was mainly staffed by radio
amateurs and/or radio engineers. Their circuit diagrams and handbooks
were a model of clarity.
>
>
--
~ Liz Tuddenham ~
(Remove the ".invalid"s and add ".co.uk" to reply)
www.poppyrecords.co.uk