A 1-K pot, or a 1 kΩ potentiometer, is a variable resistor with a resistance value of 1 kilo-ohm (1,000 ohms). Potentiometers are commonly used in electronic circuits to adjust levels of voltage, resistance, or signal strength. They typically have three terminals: two outer terminals connected to a voltage source and one wiper (middle terminal) that moves across a resistive track to adjust the output voltage or resistance.
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