Electrohome G05 500K Brightness Potentiometer (P1034). Electrohome G05-801 Series 500K Potentiometer. This 500K Trimmer pot that will fit the board perfectly and is an exact OEM replacement for the G05 and also the Wells Gardner V1000 series at R263. This pot is used on GO5-801 at locations R516. Vertical Mount Side adjust 8.74mm x 3.96mm PCB layout. .20 Watt 350VDC Maximum operating voltage 20% tolerance.