Hi all, I want to thank Nick and Steve for helping me at the repair clinic, it was my 1st time attending thanks again. Here my is question: If I need to replace a resistor what is the rule of thumb? Choose exact wattage and ohms? Or is there room, +/- either way. If I was replacing a 1/2 watt 13,000 ohm resistor what would you choose? Thanks, Dave LeMay