I always turn the amp off when I leave the house and most of the time when I'm sleeping... (Unless I fall asleep on the couch Whoa huge haul Shaff! Lots of fun to be had in the weeks ahead Be sure to let us know I have some Sylvania 6SL7GTs, they sounded really good as drivers in the Elise (but it got slightly warm, lol). As power tubes, they sounded good too but, missing some oomph. I could not recommend those wholeheartedly as power tubes in the Elise. Have a GE 5692 tube with your name on it Shaffer! Very nice construction and would be curious as to what you think of it in your DV.