Other Parts Discussed in Thread: TL074, TL084, LM358,
Hi,
I'm a hobbyst and I have purchased :
-opamp TL084, TL074, RC4558x2
No one runs, but an LM358 of another manufacturer does the task for this reason I imagine the circuit is OK but I don't understand why your opamps do not runs. All of them have 9V on VCC and GND on VCC
Best regards,