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Voltage, otherwise known as electrical potential difference (denoted ∆V and measured in volts) is the difference in electric potential between two points (adapted from Wikipedia). Voltage can be constant (DC) or varying (AC).

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Building a power supply, Mysterious voltage jump?

The voltage coming out of the diode is 26VDC which is close enough for those old radios. … I am not using any kind of voltage regulator IC because I didn't think I would need one if I could just get the power supply to output the voltage I want. …
Jake Lampada's user avatar