Anyone have any of the GE F15T8 'Reveal' lamps? That color (2600K) has since been discontinued and is hard to find now.  I've tried eBay, Amazon, eLightbulbs, Bulbs.com, etc with no luck.  I've got some but not enough. 

As a second choice, anyone have any /WWX I can try?

They've been off the market for several years now, unfortunately.  The F15T8 was made in Hungary, then Indonesia, but after production ended in Indonesia there were not more.  Likewise the F15T12 was made in Circleville, and production stopped after they closed.  I was about to say lightbulbs.com still carried the T12, but now they are showing it's out of stock.  Supposedly it can be back-ordered, but I bet if you tried they wouldn't be able to get it.  An older F15T8-SW would be similar to WWX.  I did spot one vintage GE F15T12-SW on eBay.

Thanks for the lead, Patrick! I'm hoping to find some T8 versions, though, as they will physically fit these old desk lamps a lot better.