Re: Buzzing xfmrs

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

Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>" <Fucian-at-aol-dot-com>

In a message dated 4/8/02 10:53:34 AM Eastern Daylight Time, tesla-at-pupman-dot-com 
writes:

<< Matt,
 
 You can't do this. It isn't possible to reverse a low-votage tranny and get 
a 
 HT one, since
 
 1 - The Mains side is not insulated enough to output more than a few hundred 
 V.
 
 2 - The LV side does not have enough turns to be run at 240v - you need a 
 certain number of turns per volt, or the core goes into saturation (= nutty 
 current draw and buzzing).
 
 3 - Following on from the former, the core is too small for any decent level 
 of power - it's designed for the 20 watts or so and that's it. You're not 
 going to be able to make a 1kVA plate tranny out of this core.
 
 You need a real plate Xfrmr, or perhaps a microwave oven one - but you need 
 to be very, very careful with these since that have no current limit and 
 could kill you instantly.
 
 Be careful
 
 Alex
  >>
Hehe,oh. What about a 100watt core?16v 6.25amps.I dont want much voltage.Just 
enoguh to charge a 450volt 3500uF capacitor.And I know there are better way 
sof doing this.Like winding a highfrequency ferrite type but im just looking 
for a quick fix.
LOL.

Thanks,
Matt