http://cgi.ebay.com/Two-Vintage-1960-s-Round-Color-CRT-s-RCA-Zenith_W0QQitemZ280238916747QQihZ018QQcategoryZ363 8QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

I would buy these if someone would pony express them. The Zenith tube seems really good. The RCA worries me a bit on the life test but is still decent.

those tubes are getting very scare .If someone has the money and space to store these , this would be a good investment .