Eagle CAD problem

[C_Bubba]

fivetide,
Unless I am missing something,and probably am,
this one shows the "air routed lines" and you can still move the various "parts" such as pads to different physical locations on the board by click and dragging where you want. Then hit the "ratsnest" icon and it will reroute the air lines in case you have a mess. Then you can to the final routing either by auto route or manual routing to get the "blue traces" that are the actual traces you want on the board.

Hope this helps.

[Fivetide]

Hi Bubba, it was more the fact that R1 is routed to the center pin on the NPN , because that don't follow what I thought I had sketched .. or is the right pin the center pin when you go to the PCB layout ?

[C_Bubba]

fivetide,
I "think" your confusing the schematic symbol and the physical symbol. From the data sheet that I pulled, you can see the "base" is pin 3 and from what I am understanding your concern, you think the base should be pin 2? I believe you have things shown correctly per the schematic that you put up. And here is the full cutsheet http://www.kitsandparts.com/BD139-16.pdf

[Fivetide]

Hi Bubba thanks for your reply's .. the part I'm using is RS-Part is it still the same layout ? Only the picture of the board Ian did looks like it follows the same tracks in real life ? if your right then what looks like the center pin is the right pin ?

[C_Bubba]

fivetide,
I looked at your schematic to find the part number BD139 and then did a google on that number. This is an industry standard part number. HOWEVER, I just looked up the part number you referenced above and it is a 2N3904.
Now looking at its pinout, and I can see the confusion!. It indeed does have the base in the center pin! You need to change the part no in your schematic to the correct one for the transistor that you have.
Here is the url to the cut sheet that I have ref'd:
http://www.fairchildsemi.com/ds/2N/2N3904.pdf

HTH

[Fivetide]

Thanks Bubba , thought i was going insane lol :)

[C_Bubba]

fivetide,
Anytime my friend as I have been there done that and have the tee shirt to prove it!

NEVER take anything for granted and then double check as you will usually be wrong.

Don't ask:})