For Sale:
A matched quad of Sylvania 6L6GC in Sylvania boxes. Bought by me from Andy at Vintage Tube Services who stated that they were the strongest and closest matched quad he'd ever seen. I put less than 50 (moderate volume) hours on them because my speakers need more power than 6L6s can provide.
Great sounding tubes; as good as the RCA black plate 6L6s I had: they have a more even frequency response.
Pics here:
http://www.audiocircle.com/index.php?action=gallery;area=browse;album=5525$160 including paypal, shipping and insurance with delivery confirmation.
All positive rating of 378 on A'gon. under the same user name.