Hi everyone, my first post here. I am working on restoring a vintage ATX PSU. One of the power resistors on the low voltage side seems to have been overloaded, and the outer shell has chipped away. Measuring Ohms with a Multimeter shows 7.16 Ohms. My first guess of the resistor value based on the colors would be Black, Green, Brown, Gold 50 Ohm 5%. However I don’t think this is correct.
My Second guess of the value would be Violet, Green, Gold, Gold. Putting the value at 7.5 Ohms 5%
The resistor is 24mm long and 8mm diameter. In circuit it reaches 120C even when the PSU has no load.
I have tested a 50 Ohm replacement and it is definitely triggering current protection, as it doesn’t power on on as it should. So I’m thinking that it is indeed a low Ohm resistor. But with the colors and measured values not making any sense, im at a loss. Hopefully someone can help, thanks for your time.