ProCo Rat not working

[lopsided]

I am sorry it didn't work out.
Unfortunately I know not enough to say what the lowered voltage is as symptom of.
One thing I would do, if I were in your situation and nobody gave me a better advice, is desoldering one by one the jumpers going to 9v. But that is a kind of trial and error way to do it. So i am not sure if it's a good advice. Anyway I would:
- take the IC out of the socket
- unsolder the jumper going from a/19
- check the voltages around the R8 - did they come closer to the voltage of the battery when it is unconnected?
       (side note: at the schematic I am taking as a reference  (http://www.happybob.com/rstrand/rat/pcratrev.gif) the drain of the transistor is also connected after  the 47R resistor not before. this shouldn't be a problem though i think
- if not, solder back in - do the same with the jumper at A5 / -check the Voltages
- repeat with the a11 resistor and finally with the a14 jumper
my hope would be that at one point the supply voltage would jump back to normal +-9V - and we would find out the section of the circuit which causes problems

once again this is a more primitive a not elegant way of debugging, and it might not lead to anything, It is just something I would do if I was clueless.

[stringsthings]

Found a socket from an old organ and desoldered it from there. Then I desoldered the ic chip from the rat. After I put the socket in and attached the ic chip again, it still does the same thing 

The resistor values are right, but how do you trace the +9v to see if it dips down?

Thanks for any further suggestions...

take the IC out of the circuit and apply power .... measure the voltage on pin 7 of the socket ... it should read close to 9.0V

the top row of the vero-board ( A5-A23 ) is the power rail ... (R8 drops it down a bit) .... you should be reading close to 9.0V on this power rail ...