Well you can be sure its under 5 watts. Since resistors have to dissipate the heat they generate they get a lot bigger and from 5 watts on up they are bricks with the wattage marked on them. Below 5 watts they get smaller, down to fractions of a watt which are only about 1/4" long. Yours are probably 2 or 3 watts. Not that knowing will do any good, neither the ones you have nor the ones you'll buy will be marked. You just buy ones about the same size, they will be the same wattage. I replaced one of these that blew under a tube. Not a big deal if that's what you're doing.
4 responses Add your response