Matched Quad AUDIO NOTE (UK) Branded 300B

[Jag]

Anyone know who might have made these 300B valves for Audio Note or rebadged them?

http://www.ebay.co.uk/itm/360794459170?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1438.l2649

 

[meninblack]

They are Chinese, I think Shuguang make them for AN.

 

[Jag]

Thanks, I thought they might be but the brown bases reminded me of the Valve Art 300B valves. Just wondered if these are any good or anyone had experience of hearing them?

Just trying to have a reasonable back up matched Quad set to my current WE 300B's.