Ok, bit by bit I am learning about working on tube amps. My question is about wattage ratings on resistors. From what I have read, the wattage in conjunction with the resistance determines the voltage drop across the resistor. If I am looking at a layout or schematic and the wattage is not specified, I am wondering what things to consider when choosing the resistor. Also, does it make a much of a difference to go up in wattage for the same value resistor - ie. using a 2 watt resistor in place of a 1/2 watt? Thanks for any help.