a very simple op amp circuit with some detail omitted If you open this circuit in the Falstad simulator, you’ll see two sliders to the right where you can tweak the input voltage. If you make ...

The humble op-amp can be configured into so many circuit building blocks that it has become an indispensable tool for designers. It’s tempting to treat an op-amp as a triangular black box in a ...

which leads to the principle of using diodes with op-amps, is that an ordinary diode cannot rectify voltages below V r, the cut-in voltage of the diode. Therefore, ordinary diodes cannot be used to ...

One circuit that may be used to realize a general biquadratic transfer function, and of course can be used to realize special-case low-pass, high-pass, band-pass, and band-reject functions, is shown ...

After a brief review of the history of the K2-W vacuum-tube op amp, an LTspice model is used to create its schematic in ...

The two 62-V independent voltage sources represent the two neon lamps used in the actual circuit as voltage regulators ... The LTspice schematic of the K2-W op amp in a basic inverting ...