Tube ID please

[C Moore]

I guess a tube can be constructed in different ways and still be the "same" tubes.......but do these look like the same tube.?
They are both labeled 6SL7
Thank You

http://i111.photobucket.com/albums/n143 ... SL7001.jpg
http://i111.photobucket.com/albums/n143 ... SL7002.jpg
http://i111.photobucket.com/albums/n143 ... SL7003.jpg
http://i111.photobucket.com/albums/n143 ... SL7004.jpg
http://i111.photobucket.com/albums/n143 ... SL7005.jpg
http://i111.photobucket.com/albums/n143 ... SL7006.jpg
http://i111.photobucket.com/albums/n143 ... SL7007.jpg

[David Root]

Yup, they are "electrically equivalent" as the Ancients used to put it. RCA & Sylvania. I have some of each.

There are other 6SL7s that look different than those. I have a '51 Ken-Rad with shiny nickel plates, very snazzy! They sound darker than the Sylvania or the RCA.

[cobalt]

The WGT is a military tube, supposed to be more durable, ya they are the same animal, but will likely sound VERY different.

weirddave