The underrated tubes in the market.
One Matched Pair 5691 (6SL7GTB/Y) Tubes, Tung-Sol, Red Base, Long-Life
One Matched Pair of 6922 Tubes, By Amperex USA, Gold Pins, High Ratings
One matched pair of 6922 tubes, by Amperex of USA. Mostly the prints are off due to age. The typical Amperex codes are 4H and 5H engraved on the tubes. Most of my tubes were U.S. made. Price is for one pair only.