Value Display Potentiometers are a variable device that opposes the flow of current. The resistance of these devices is changed by pushing a button or rotating a wheel. The values that the device is being changed to is displayed on the front of the unit. The resistance range from 500 Ohms to 1 MOhms with the power being 1.5W or 2W and an adjustment type of push button or rotary with the number of characters 1, 2, 3, 4, or 10.
