Re: Interview Question (your Sunday ruined part 2)

Pimpom <Pimpom@invalid.invalid> wrote:

On 21-10-2024 11:40 am, Jan Panteltje wrote:
 

 
And the old zig-zag symbols the US uses for resistors.....
  --\/\/\/\/\--------
 
  better
---====-----
    2k2
 

I agree about the resistor symbol, although I've gotten into the habit
of using the Euro-style rectangle.
 
I've created some dozens of component symbols for my CAD program.

I've created my own library for Claris Works, which I use for all my
circuit diagrams.  I prefer wiggly resistors and no four-way junctions,
but I take a mix & match approach to the various standards.

My resistors are the old British standard.
My electrolytic capacitors are the pre-war German standerd (with my own
home-made symbol for non-polar types).  The two-rectangles British
Standard  is counter-intuitive nonsense and a nightmare to draw and
shade in.
Resistor marking is 4k7 but, below 1k, I put in the omega symbol to
avoid confusion.
Capacitor marking is similar:  2u2f, 1n5f etc.
Crossovers are indicated by a gapped line; four-way junctions are
*never* used (the ends of the lines can be staggered at 45-degrees if
necessary).

The one symbol I have never been sure about is a battery.  Apparently
there were two different standards, one where the longer line
represented the positive and the other where it represented the
negative.  I always indicate the polarity and the voltage alongside the
symbol.
e.g.
http://www.poppyrecords.co.uk/other/DualImpedanceAmplifier.gif

I've noever had anyone complain they can't understand a drawing like
that.

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