Jump to content
Electronics-Lab.com Community

Re-winding tranformers


Recommended Posts

I read in alot of projects and articles about the need to re-wind old transformers to fix them or modify their output.

I've searched the internetand there is nothing (that I could find anyway) about how to do this. How would you do it???

From what I can tell the case is welded together...


Link to comment
Share on other sites

Not all are welded and not all are E I core, some are toroide transformers. Usually the secondary winding is the outer layer (on top) and can be removed and replaced with some effort. When removing a secondary its always a good idea to count the turns, this gives an idea of how many turns you have to put on to get a desired voltage (knowing the original voltage). If the core is welded you can still do this, it’s just like stitching only backwards! Some transformers just isn’t suitable for this kind of surgery like when they are molded in epoxy or some resin. Even these can be dismantled if left for some time submerged in paint stripper but it’s too much trouble unless the transformer is a very special specimen!

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


  • Create New...