Yop, Mouser just shipped it about an hour ago.
Tiny little thing for a 25w resistor, looks like this.
https://i.ebayimg.com/images/g/pWYAA...lE/s-l960.webp
Much smaller than the failed 11w one that I opened to look inside.
It had not burned open or anything, but failed due to corrosion where the metal clamps to the nichrome resistor wire inside, I must have disturbed it too much bumping the HV case where it's mounted,when trying to adjust the horizontal linearity that is right near it.