300 OHM .25 Watt 250VDC Maximum operating voltage 20% Tolerance TRIMMER POTENTIOMETER (P1091). Vertical mount side adjust POT with screwdriver slot adjust. PCB layout is 8.8mm x 4mm. 15mm Diameter Carbon resistive element and up to 100K cycle rating. Used on Wells Gardner K6100 Color Vector series monitor chassis and these are the exact original fit for the color Drive pots on the neck PCB and some locations used are R507, R508 and R509 and many other monitor chassis and other applications that require this value. These are the exact fit for the application listed above but can also be used in many other applications where this value of Pot is needed.