Circuits / 555 and op-amps
Op-amp comparator
Without feedback the output saturates: high when V+ > V−, low when V+ < V−

Tap a part to see its voltages and currents. It is a model, not a measurement.
Parts
- Resistor 10 kΩ × 2Search on Amazon
- Integrated circuit LM358Search on Amazon
- Potentiometer 10 kΩSearch on Amazon
- Resistor 330 ΩSearch on Amazon
- Red LEDSearch on Amazon
- Jumper wires × 9Search on Amazon
- BreadboardSearch on Amazon
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