Center-tapped to dual secondary modificaton tutorial

[troystg]

Hi All-

I just converted my transformer from center-tapped to dual secondary.

The pictures are attached one per post.

Please notice in this diagram I added a second xfmr also...

The concept is here:

 

[troystg]

first picture.

 

[troystg]

2nd picture of xfmr open.

 

[troystg]

3rd pic of coil end matching.

Fluke set to measure resistance. Value in desplay is 1 Ohm. Different xfmrs will have different values.

At the end will be a picture of the WRONG ends showing "OL" (out of limit) on the volt/Ohm meter.

 

[troystg]

4th pic of pairing the coil leads.

 

[troystg]

And the center tapped lead un insulated about to be unsoldered.

And yes I did nmean to put this picture higher... Oh yell, I hope you weren't doing it and reading at the same time.... 😀

 

[troystg]

Final pic of the xfmr retaped..

 

[troystg]

Coil ends of different coils. No continuity. Try again. 🙂

 

[richie00boy]

So, basically you just cut the loop that forms the centre tap, check which wire goes with which winding, and add a wire to the new points?

 

[troystg]

Hey richie00boy-

"that be it!"

 

[carlosfm]

Thanks for opening this thread, as soundNERD was just needing to do this.😀

http://www.diyaudio.com/forums/showthread.php?postid=492747#post492747