Genalex Gold Lions are used in my MC275s run in mono. Data sheet says two valves in class AB1 gives a continuous output of up to 100W.
I've used the following to retubed my MC275s and C500T:
http://www.dougstubes.com
http://www.musicdirect.com
http://www.tubedepote.com
[url]http://www.tubeworld.com[url/] is another great source.
I've used the following to retubed my MC275s and C500T:
http://www.dougstubes.com
http://www.musicdirect.com
http://www.tubedepote.com
[url]http://www.tubeworld.com[url/] is another great source.