Am I crazy or is this layout wrong??

[Govmnt_Lacky]

I was looking at this Tonebender layout on JDs site and something looks off:

http://www.generalguitargadgets.com/diagrams/tonebender_m2p_lo_pp.gif?phpMyAdmin=78482479fd7e7fc3768044a841b3e85a

It is the PNP version and if you notice, having the 9V wired to the input ring, when you install the input mono jack it will connect the ring to the sleeve. This will cause 9V to be on both sides of the LED (when engaged) and it also puts 9V on the enclosure 

Am I wrong with this thinking?

[PRR]

> Am I crazy or...

OR?

I agree that both sides of the LED appear to go to the same place. (But I may be confused at the 3p3t switch.)

PNP is often wired positive ground (as the plan says). So batt-clip red wire to case is presumably correct.

You won't be happy running this on a common power supply with other boxes wired negative ground.

[alparent]

The batt. connections are Ok since it's a positive ground
But you are right on the LED wiring....it's wrong. The wire from the LED resistor should go to the batt. negative side.

Isn't that good news! Your only half crazy!

[Govmnt_Lacky]

Thanks all for the inputs. I am still concerned because:

1) The enclosure would STILL be hot with 9V when the input plug is inserted (shunting ring to sleeve!) On a battery only circuit, this is an unecessary load.
2) Is it OK to run 9V to the non-resistor side of the LED? I did not know that you could run power to either side of the LED 
3) Also, if you look at the layout, when the effect is off you are putting 9V directly to the input. Is this OK for the circuit?

All around, this just looks off to me as I am solely experienced in negative ground circuits. I just want to consult with the forum for some knowledge.

[alparent]

Remember you are working with DC not AC current. Having the + or - connected and the other side not connected gives you the same thing.....nothing.  Put your tongue on the + or the - it make no difference.........put it on both...... 

[Govmnt_Lacky]

Remember you are working with DC not AC current. Having the + or - connected and the other side not connected gives you the same thing.....nothing.  Put your tongue on the + or the - it make no difference.........put it on both...... 

OK. I understand however, I still wonder what would happen if your metal enclosure were to be touching something with a lower ground potential. Would it sapp the battery?

Also, is it OK to run power to EITHER side of the LED? I always thought you HAD to run power to the Anode (long leg) via a current limiter resistor and ground the Cathode (short leg) 

[alparent]

Make no difference on what side you put the resistor on the LED.  Try it!