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Concord Consortium
Concord Consortium: Measuring Ac Circuits With a Dmm
Find out how the SPARKS DMM can measure AC voltage and current.
Creative Science Centre
Creative Science Centre: Diode Ladder Voltage Multipliers
Explains the design of circuits that can be used to multiply and rectify AC voltages, e.g., to increase voltage in order to light an LED more effectively and get a brighter light from it.