
EDIT:
So I put back the 741 I took out, and its gone back to the original fault, so obviously that had gone faulty... It must have blown the 5534 I put in yesterday.. so I need to see if I have a spare spare 5534....
EDIT2:
Nope same fault... oddly with what 741 in place, just touching pin 3 causes the voltage to shoot up.. there is only 1 probe connected, and its not pressing down on it at all, so its not a bad connection.. so like a couple of pF on the meter probe is causing it to go nuts ?!