-40%

LOT OF 5 12AT7 Preamp VACUUM TUBES TV-7A Test w Measurements + 1 bad Telefunken

$ 18.12

  • Country/Region of Manufacture: United States
  • MPN: 12AT7
  • Model: 12AT7
  • Seller Notes: “2 new in box, 3 open box/used. Five test good on Tv-7A. See description for details.”
  • Type: Preamp Tubes

Description

This lot includes 5 vacuum tubes of various brands, all tested and in good working order, plus 1 bonus Telefunken that does not test good. The 12AT7 model is a classic choice for audio enthusiasts and collectors alike. These tubes are perfect for use in vintage audio and video equipment, as well as modern electronics. Whether you're a seasoned collector or just starting out, these vacuum tubes are a great addition to any collection. Also included in lot is a Telefunken 12AT7, but it tests weak, below the TV-7A acceptance value of 50. So it is only included as a bonus, non-working tube. 5 tubes test good on both Hickok 6000A and our newest addition, a calibrated TV-7A/U. See measurements below. Amperex: 70 / 68 Sylvania: 85 / 75 Westinghouse: 79/ 82 Unknown 1: 72 / 64 Unknown 2: 76 / 80 Telefunken: 32 / 42 * below minimum good level of 50