Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ.

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Re: Xformer question mainly for Thorsten

Posted by Thorsten (M) on November 27, 2001 at 05:51:26

In Reply to: Xformer question mainly for Thorsten posted by Granholm on November 27, 2001 at 04:24:36:

Hi,

I think you better leave winding such transformers to those who know how to do it. Myself and a number of Professionals (Mr. Sowter and Mr. Billington especially) have worked quite hard to produce a working solution. I'll not pass on the trade secrets from within this development process. And trust me, making such a transformer is not simple. Check the referenced site for a case where this was tried and did not work....

To quote:

"The coupling between primary and secondary at the smallest tap is so small that the signal collapses. This is what is resulting in the high loss of hf response and lower settings. At full output the coupling is about 1:1 and frequency range is indeed into the 80kHz mark, but when the switch is turned down, the hf drops quickly no matter what kind of load I use."

If you want a Transformer Attenuator, I have referenced the sources before.

Ciao T

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