Recent content by nitro

Does this look right for an EL34B push pull 25W.

Agreed Mars I just posted that link to look at. I don't intend to try that transformer for my firs go.

"Any good transformer company can then program a transformer winding machine to wind a transformer that is for all intents and purposes IDENTICAL to an original Dynaco transformer. More importantly it will also SOUND LIKE an original Dynaco output transformer. Below is the wind diagram of a...

So... 300x sq.rt 25 = 1500mm sq :Afe. Tongue dimension sq.rt 1500 = 38.72mm (EI114) One size smaller. (EI96) As recommended by Tuner Audio Calculate stack height: S= 1500 / 32 = 46.87 Rounded up to 50mm Confirm sizes for core:  Afe= 32 x 50 = 1600 sq.mm Does this look correct?

Hi Ernst cant wait to see the pictures of your progress. Those transformers are expensive when shipped to S.A. It also seems that you can never find a power transformer with the voltage you need. That is why I figured why not learn to wind my own transformers. I have found that I can get...

Would it be a bad idea to use glass tape between the layers instead of wax paper?

What size core should I use for a 25w push pull transformer. Thanks for the offer of the winding machine Mars.

Thank you Mars it was your posts on output transformers that made me decide to wind my own. I will go to Alloy Magnetic Cores. I bought some bobbins from RSE electronics before, for some air core inductors. (www.rseelectronics.co.za)

I have read that you can use 100V line transformers as output transformers but, after reading a little it does not seem like a good idea. I can buy transformers online but the prices are crazy.

Where can I find bobbins and lamination's for output transformers. I would like to wind my own transformers. I would like to build a sterio version of this kit on a single chassis. http://diyaudioprojects.com/Tubes/5751-KT88-Tube-Amp-Kit/ I have made a small diy winder for inductors for...