Home made toroid winders : exist

[kaushik]

May be i can get hands on cores ..
one here
http://www.youtube.com/watch?v=kmWpJNehi1Q
one is here
Homemade toroid winder - Hack a Day

 

[omishra]

I have done it manually. It took me almost two weekends to complete 1000 turns of primary and secondary for a custom, tight fit, low profile toroidal transformer. I have DIY tool which I use for that purpose. All effort was to save 40K priced UK made power Amp.

 

[kaushik]

I have done it manually. It took me almost two weekends to complete 1000 turns of primary and secondary for a custom, tight fit, low profile toroidal transformer. I have DIY tool which I use for that purpose. All effort was to save 40K priced UK made power Amp.

We all want pics of your jig ,
That means you have the source of core for toroidal.
* How is the trafo working ?
* What calculators you used ?