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Re: Need help understanding transformer windings...

210.55.177.10

Posted by Bill ramsay on January 28, 2004 at 19:58:59

In Reply to: Need help understanding transformer windings... posted by darkmoebius on January 27, 2004 at 15:58:20:

Hi

there are a couple of ways of doing this, the first is to loop out a bit of the transformer wire at the point the tap is required. This is usually laid across the existing winding, and held in with a little bit of tape, something like the stuff used for the inter layer insulation. The PD across the winding and the tap is usually minimal.

The second is to make sure that where the tap is, is actually a full layer on the transformer, so that there is a seperate start and finish to the section. By doing this for all taps, it means that you can come up with various combinations of windings to allow impedance matching.

If you can get hold of the bottlehead valve magazines on CD, there is an excellent series of articles on SE xformer construction.

hope this helps.

Kind regards

Bill.

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