need some advice! The SB220 King Conversion for Six meters works great except that the overload fuses (circuit breaker) won't hold in for very long!  They are rated at 10 amps on each leg. I would guess that they are the original ones which makes them 50 years old maybe. I doubt if I can find any like the originals so i would like to replace them. any ideas? tnx Cort K4WI