What can I replace a 4ohm 7w ceramic resistor with. The one under my playfield has been soldered together on one end. Keeps coming undone and my back box flashers stop working. Trying to see if I can find something at a local store to save shipping costs. Most places online charge a standard shipping fee for something that can be mailed with a stamp on an envelope. Lol The resistor works but I want to replace it.