I got this free , a BK 1636 PS , it had the Neg. post broken off , put on in from my parts bin .
I power it up and it seem to work OK , till I turn up both the course & fine pots , at about 4v it will jump to 43v , the max is spouse to be 30v at 3a .
Have to power down to reset , then the same again .
My diagnostic skills are not enough yet , especially with out a wiring diagram .
Any help ?
Thanks John