toroid transformer Q

[Martin Czech]

>shouldn't be a prob.. I had a very powerful transformer of conventional 
>design in an aluminium case a few yrs back, odd things happened. When it was 
>on the test bench [which had little bits of component legs snipped off all 
>over the place] it would make a loud clack as it was switched on - the on 
>surge generated a magnetic pulse which caused any little bits of wire under 

Of course a torroid will have even more on surge, which could cause problems.
I therefore use a starter circuit with relay and resistor to limit the
trafo primary current to some reasonable value, untilthe PSU caps ,have
charged up a bit.


m.c.