NOS Westinghouse 12AX7 Preamp tubes. Both manufactured by Westinghouse in the USA. One is branded for Knight Organs. Both have identical construction inside. Technically it's ANOS (Almost new old stock), but it has very, very little use, under 3 hours. I'm just preferring the new Chinese tubes in my Bogner. Go figure. Purchased from and tested by Brent Jessee Audio Tubes $15 Per Tube. 2 Available.
NOS 12AT7 tube. JAN Philips. USA made, literally under an hour of use. Purchased from Tube Depot. $8 bucks.
Take all 3 for $35 bucks.