Re: gEDA-user: EBC vs. 123

[Wojciech Kazubski <wk@xxxxxxxxxxxxx>]

> Is there any convention how symbols and packages of transistors should
> be done in gEDA? CBE or 123?
>
> If yes, is it written anywhere?
>
> CL<
Both ways are possible.

If you name them 123 then you will have several gschem symbols for each pinout 
and one symbol in PCB. The same symbol will also  fit for ICs in transistor 
case (voltage regulators, temperature sensors or so)

If you name them EBC then you will have only one gschem symbols for each 
pinout and several symbol in PCB (and also one more with 123 pinning for ICs)

The first way is better if there are symbols for specific transistors. In such 
case the BC547.sym BF240.sym and 2N3904.sym may than use the same TO92 
footprint with 123 pins. Note that different manufacturers of TO92 integrated 
circuits use different numbering 123 vs. 321

If there are only generic symbols for transistor (npn.sym or so) than both 
variants are almost equall

Presonally I prefer first way (choosing pinout in schematic editor).

Wojciech Kazubski