From time to time I have seen people looking for flyback transformers on the list. I just came across a resource that may (or may not) be useful for anyone looking for one. Hope this is of use to someone. https://www.technotronic-dimensions.com/sitemap.htm Will Grownups never understand anything by themselves and it is tiresome for children to be always and forever explaining things to them, Antoine de Saint-Exupery in The Little Prince