Ok, found the proper switches and cleaned the box face plate. Now off to buy resistors. Couple of questions:
1. The knobs are original Daka-ware from 1955. They are made of bakelite, I read that it's toxic as a particulate, causing lung cancer. Should I replace them with modern ABS equivalent?
2. Should I buy 1% resistors or should I buy hundreds 5% resistors and find one that is closest to marked value amongst 5%? I looked on digikey and 1-3 watt 1-0.1% resistors could run up to $16 a piece. I need a total of 20 resistors.