Resistor Wattage

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Regarding all the resistors in a 5e3 (or other) wherein ohms are specified but wattage is not specified:

Are they typically 1/2 watt resistors?

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Yes, only exceptions are the 250 ohm 5 watt cathode, and the 4k7 / 5k 2 watt screen node power supply resistors. Pete.