🚀 go-pugleaf

In article <54172@unix.cis.pitt.edu>, fmgst@unix.cis.pitt.edu (Filip Gieszczykiewicz) writes: 
> 	I have these. Do you have more?

I like:
  _|_ for normal diode,   _|_for zener diode   _|_ for SCR
  /_\                     /_\`               ->/_\
   |                       |                    |

For transistors, FET's and valves (aka tubes) I like the same approach used
for integrated circuits, e.g.
     |                         |+9v (usually omit power supply in diagrams)
    [c]            [j  q]    |\|
  --[b]2N3055      [k -q]  --|+\---- output
    [e]                   ---|-/ 741
     |                       |/|____-9v 

i.e. a "box" with the elements labelled (c,b,e or s,g,d, k,g1,g2,a, j,k,q,-q,
etc), and a label outside the box saying the type of device (2N3055, OC71,
BA102, 6V6GT, 74LS74, or simply NPN, etc). Using the capital letter of Pnp, etc
isn't a bad idea, but the name of the connection is easier to read (and harder
to confuse).

> 	Resistor		-R-
> 						|
> 						R	
> 						|
> 	Capacitor ("C" being +) -Cap-
> 						|
> 						C
> 						a	
> 						p
> 						|
> 	Ceramic Cap (nonpolar)	-||-
> 						|
> 						-
> 						-
> 						|
> 
Not bad, but how about e.g. -47R-  to indicate a 47 ohm resistor, -220KR- for
220Kilohms, -100nF- for 100nF capacitor, -10uF+-- for a 10microFarad
electrolytic, with + end marked.  
-R-  (or -^v^v- or |
                   >
                  <
                   >
                  | if you have enough room)
and -C- or -||- or _|_
                   ___
                    |  again, if there's room)
are okay if you simply want to show a general capacitor, without giving its
value. I'd prefer the same symbol for nonpolar and polar capacitors, but with a
"+" added where appropriate.

I'd like to see a good standard for ASCII circuit diagrams, and preferably one
where the circuit looks okay "as is", *and* can be automatically translated
into proper HPGL or postscript or whatever. Using characters like "/" and ">"
as I have above is not as good as, for example, -220KR- for automatic
conversion, and in my playing with the idea so far, horizontal components are
significantly easier to recognise than vertical ones. Anyone else doing this
sort of stuff??

Mark Aitchison, University of Canterbury.