Homebrew PCBs

On Fri, 8 Apr 2005 01:12:37 EDT, <JanRwl@...> wrote:

>
> Steve:  If dismantled for parts, HOW would it be dangerous?   Loose
> components and cords that once comprised a microwave oven are NOT evil   
> radiators of
> deadly energy as certain evangelicals have tried to imply!  I  have a  
> pair of
> magnet-rings from our old dead microwave on a spindle, like-poles   
> facing, so
> one is held "up in the air" ("levitation") on our  coffee-table.  More  
> than ONE
> person has picked this up, fiddled with it a  bit, looked FRUSTRATEDLY
> confused and put it down, again without saying a  word.  Guess they  
> don't want to
> expose their failure in ninth-grade general  science!
> The transformer was BOBBIN-WOUND and the E-I core NOT soaked in Formvar,  
> so
> customizing that big ol' transformer was straightforward!  Such a "new  
> one"
> would have cost at least  $30!            Jan  Rowland


I agree, it is totally harmless as long as one does discharge the HV cap  
and doesn't power on the xfmr with HV winding attached.
You can make a neat isolation transformer, and spot welding transformer,  
and cnc transformer, and....
And the magnets are neat, yes.


ST