Sam thank you, I appreciate you commenting. I just last night made it too the analog tape applications, and I gotta say whoever designed these knew what they were doing. It is built to test, period. I was amazed at how extensive the test and alignment of an open reel deck was. The ability to insert any industry db unit of measurement is above and beyond. After reading that section some things that Nakoc had said about the db reference level made a lot more sense.
Sam this one was built in 2000, and last calibrated in 2008 by Kandel Electronics in Oreland, Pa., for Nagra USA in Gallatin, Tn.