A solicitação
“An inverting TL072 op-amp amplifier with a 1 V AC input through a 10 kΩ input resistor, a 100 kΩ feedback resistor, a 10 kΩ non-inverting bias resistor to ground, and plus and minus 12 V supplies.”
Depois, tenteChange the gain to -5.Add an output coupling capacitor.