I have a fair number of mains transformers, unmarked, sitting in a box.
It's fairly easy to find the output voltage, but what is the best way to arrive at a current rating? At present I add more load until I'm not happy with the transformer's temperature, then deduct 20%. Any better ideas?
It's fairly easy to find the output voltage, but what is the best way to arrive at a current rating? At present I add more load until I'm not happy with the transformer's temperature, then deduct 20%. Any better ideas?