Welcome to Wikipedia. Thank you for your contribution at Talk:Toroidal inductors and transformers, but posting a new thread right in the middle of the page is not usual so I have moved it to the end of the page which is our normal convention. If you intended to reply to an existing thread, the usual way of doing this is to WP:INDENT your reply by one more tab than the post you are replying to. A new heading is not needed and not usually added. If you really do need to add a sub-heading to a thread, it should be a heading one level down – see MOS:HEADINGS.
On your substantive point, if you think an article needs improving then be bold and improve it yourself. SpinningSpark 13:45, 19 July 2020 (UTC)