Re: gEDA-user: Shall we use letters (i.e. E, C, B ) for transsitor pin names?

[Klaus Rudolph <lts-rudolph@xxxxxx>]

Hi,

I use pin names for transistors in gschem and pcb. This makes it 
possible to use different footprints with one! symbol in gschem.
Changing from TO92 to TO220 will result in wrong connection with the 
"standard" numbers. And I also can give a string with the footprint like
"BCE" if I need different pinout for a "special" TO220 device if needed. 
If parameter is not given it defaults to the "normal" pinout. I can 
spend the m4
makros if needed.

>Hello,
>
>I have read that we can use single letters like "C", "E", "B" as pin
>names -- this makes it simpler to assign the correct footprint to a
>symbol.
>
>On the other hand, default geda/pcb symbols/footprints seems to use
>digits.
>
>What is your advice? Is there a fixed correlation between numbers and
>letters, i.e. "B" = "1", ...
>
>Best regards
>
>Stefan Salewski
>
>
>
>
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>
>  
>



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