Groove Tubes Gold Series GT-6L6-GE Matched Power Tubes Low ( 1-3 GT Rating) Duet April 21, 2011/in All About Guitars /by sheetmusic$48.95 New Meticulously recreated power tubes for the classic sound of the late 60s.Groove Tubes Gold Series GT-6L6-GE Matched Power Tubes Low ( 1-3 GT Rating) Duet http://www.sheetmusicdaily.com/wp-content/uploads/SheetMusicDaily-300x53.jpg 0 0 sheetmusic http://www.sheetmusicdaily.com/wp-content/uploads/SheetMusicDaily-300x53.jpg sheetmusic2011-04-21 12:11:052011-04-21 12:11:05Groove Tubes Gold Series GT-6L6-GE Matched Power Tubes Low ( 1-3 GT Rating) Duet