Old Tubes vs. New Tubes! HD

While changing out the tubes in an old Dual Rectifier, I decided to record some clips! Can you hear a difference? Links: Facebook: https://www.facebook.com/RiffsAndBeards Twitter: http://twitter.com//RiffsAndBeards Instagram: http://instagram.com/RiffsAndBeards Ask.fm: http://ask.fm/RiffsAndBeards