Pork Barrel Schematic

[dogmonster]

I've been looking at the Pork Barrel schematic and trying to make sense out of it, but there are a few points which I don't understand:

1) What do the circles with "pin" in them indicate?
2) What do letters L, P, and G connect to?
3) Could anybody provide some insight on how this circuit makes the chorus happen?

Thanks ahead for your replies! 

[drog_trog]

the circles with pin are connected to GND, SWITCH, IN, OUT etc

L is the pad which you connect the LED to the switch

the P & G is to do with the BBD choice MN3007 and MN3207 (the jumpers used in each case)

So for the MN3207 G needs to connect to VD and P connects to GND
So for th MN3007 G connect to GND and P connects to VD

[dogmonster]

Thanks for the quick reply!  Just one thing I'm still confused about - do the two points marked P in the schematic connect at GND (or at VD if it's and MN3007)? Is there a reason why these points weren't connected to each other in the schematic, or was this just to make it more convenient to look at?

[drog_trog]

The P's are connected all the time. The lines a schematic are known as 'nets' and if they are both labelled 'p' then they are connected without being physically connected by a line.