Re: DIY Ferrite Transformers (was: Flyback Driver PCBs...)

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

Original poster: "Malcolm Watts" <m.j.watts-at-massey.ac.nz> 

Hi Matthew,
             I will reply to this in detail as soon as time permits.
However, it is not so difficult, especially if you have hand wound
coils before. The choice of materials is important as are the
construction methods. You don't have to wind a high profile secondary
like the originals. I have wound transformers to operate up to 20KV
peak output. Watch this space (or better still have a think about it
;) I did present the method plus an inverter design to the HV list
some years ago. I expect that it's probably still in the archives of
that list. What I did not present as being too cumbersome was the
math behind the design if I remember correctly.

Malcolm

On 21 Apr 2004, at 22:40, Tesla list wrote:

 > Original poster: Matthew Smith <matt-at-kbc-dot-net.au>
 >
 > Malcolm Watts writes regarding "flyback" style (LO) transformers:
 >
 > >Or you can wind your own. All you need to start with is a C-C core
 > >made of some power switching type material like Philips 3C8 or for
 > >line-type frequencies, 3C6x like the older ones b&w TVs used. I've
 > >wound a number to my own recipes.
 >
 > Matthew replies:
 >
 > I've wound any number of new primaries for these but secondaries?
 >
 > If this is in the range of the amateur constructor, what's the trick?
 >
 > Every dead line-out transformer contains a C-C core crying out for
 > re-use...
 >
 > Cheers
 >
 > M
 >
 > --
 > Matthew Smith
 > Kadina Business Consultancy
 > South Australia
 > http://www.kbc-dot-net.au
 >
 >
 >
 >