An AC signal’s mean can be shifted using a diode and a DC voltage. In this experiment we use a sine wave from WG, and use PV1 voltage source and a 4148 diode to shift the mean of the sine wave which was originally at 0 volts.
Make the connections as per the schematic, which monitors the original input signal at A1, and the shifted output at A2. Change PV1 by touching and sliding up/down on the PV1 controller on the schematic. Observe that the output signal shown on A2 is shifting with it.