Re: gEDA-user: Transistor pinout in gschem and pcb

["Klaus Rudolph" <lts-rudolph@xxxxxx>]

Hi together,



> > Some people deffends that gschem must have "generic" pnp and npn
> transistors. 
> > In my opinion, these generic transistors only generate more confusion.
> If I 
> > cant buy a generic transistor, there must be no generic transistors in 
> > gschem.
> > ...
> 
> First there are other uses for a schematic besides building boards
> of purchased parts.  For simulating a theoretical circuit or for
> documenting an asic, ... I want a generic transistor symbol.
> 
> Second my preference for all schematic symbols is to have one symbol
> per device type.  This then has attributes which give the specific
> type (if known), and footprint.  Since the graphics is common, there
> should only be one copy.  That is easier to do if the tool has support
> for it, like the ability to create a menu where entries specify the
> attributs, or the ability to include a symbol within a symbol...
> 

I think that transistors are allways have BCE pins and so there should
be a simple sulution for the problem. But I can't see it! Most TO92
and TO220 have same pinout so this hsould be no problem. What are
the other geda tools expect? Which pinname on which pin should
be used! I think the tools are pretty good, but the librarys are
unusable and confusing. Which pinout we have to use for spice and others?

Anybody out there having an idea to solve the problem?

Again:
I need an info, which! side I have to change to make it a tool chain!!!
Changing symbols in gschem or changing elements in pcb?
Sorry, I have no experience with simulations here, so I can´t get
the correct answer myself.


Regards
   Klaus

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