robgar91 wrote:
...Just so i understand correctly, pin 6 looks like it gets it's voltage from pin 2. How could the voltage be relatively close if it goes through a 2m2 resistor first?
I've checked voltage at nodes in the area. The node of R9 and pin 2 is 4.41v, then the other side of R9 goes to 1.39v. That makes perfect sense to me (not being an electrical engineer). Where would pin 6 be getting the higher voltage from?
The op amp doesn't work as you describe. The voltage at pin 6 does NOT come from pin 2; it's generated internally within the op amp, ultimately coming from the V+ source on pin 7. If you check out
THIS VIDEO, it'll help you understand how an op amp with a feedback loop (which is what that is between pins 2 and 6) works.
My suspicion is that, if everything else checks out (correct component values; good solder joints) and seems to be working, your op amp is faulty and needs to be replaced.
_________________
“My favorite programming language is SOLDER” - Bob Pease (RIP)
My Website *
My Musical Gear * My DIY Pedals:
Pg.1 -
Pg.2