Re: I slotted my 1256B variac core, now...

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Dr. Resonance" <resonance-at-jvlnet-dot-com> 


This will work fine.  Just epoxy a piece of 60 mil hard plastic in the gap
to prevent excessive "buzzing" sound.

Dr. Resonance

Resonance Research Corporation
E11870 Shadylane Rd.
Baraboo   WI   53913
 >
 > Today I undertook the painful venture of slotting my variac core to reduce
 > the tendency to saturate when used to vary inductive ballasting. After
 > searching the archives I was unable to find any reference to a recommended
 > width of the gap that now exists in the core. Is the width of this gap
 > critically important, or just the fact that one has been created?
Currently
 > the gap is about .060" (the width of the blade used to cut it) and as has
 > been mentioned many times, it is a coiled band of strap that is straining
at
 > the clamps wanting to bust open. Should I widen this gap some, or will
this
 > be sufficient.
 >
 > Thanks,
 >
 > Un-Terry
 >
 >
 >