[sdiy] TX802 Power Supply failure (replacing 3W with 5W resistor)‏

[Neil Johnson]

> Then I found the wirewound resistor between the diode bridge (R2) and the big filter cap (C12) was dead. This is a 22ohm/3W. I'd like to replace it but the lowest wattage I can find is 5W. Would that be fine or is it too much in that place ?

3W would be the minimum needed, so 5W would be fine.  The designer
specified 3W because it is cheaper than a 5W resistor, and a 3W
resistor under normal conditions is operating within its specified
capacity.  A 5W resistor will not be so stressed.

Neil
--
http://www.njohnson.co.uk