how do I retube?

Remove the screws which hold the cabinet top on to the chassis; slowly pull the tubes vertically from their sockets. There are only two. Replace with high-end 12ax7a or 12ax7wa; i.e., Telefunken, Brimar, etc., etc., and enjoy!!

Please read your owners manual. If it's a no brainer, do it yourself. Also, don't touch the tubes with your bare fingers due to the oil they leave on the glass. Good listening!

I was hoping it was that easy, thanks for th advice mike