Matched Pair Telefunken E80CF 7643 for McIntosh MR-67 65B 71 rebranded Lorenz

One platinum matched pair (2 tubes) E80CF 7643 made by Telefunken in West Germany in 60s, rebranded Lorenz. They are carefully tested and matched, selected from big batch of identical tubes. All tubes are the same codes. Long life, special quality, gold pin version, they last forever. Diamond bottoms, gold pins.