-40%
6sn7 b65 tube Fivre Italy preamp tubes valve matched pair 6sn7gt vintage 1950's
6sn7 b65 tube Fivre Italy preamp tubes valve matched pair 6sn7gt vintage 1950's
6sn7 b65 tube Fivre Italy preamp tubes valve matched pair 6sn7gt vintage 1950's
6sn7 b65 tube Fivre Italy preamp tubes valve matched pair 6sn7gt vintage 1950's
6sn7 b65 tube Fivre Italy preamp tubes valve matched pair 6sn7gt vintage 1950's
6sn7 b65 tube Fivre Italy preamp tubes valve matched pair 6sn7gt vintage 1950's
6sn7 b65 tube Fivre Italy preamp tubes valve matched pair 6sn7gt vintage 1950's
6sn7 b65 tube Fivre Italy preamp tubes valve matched pair 6sn7gt vintage 1950's
6sn7 b65 tube Fivre Italy preamp tubes valve matched pair 6sn7gt vintage 1950's
6sn7 b65 tube Fivre Italy preamp tubes valve matched pair 6sn7gt vintage 1950's
6sn7 b65 tube Fivre Italy preamp tubes valve matched pair 6sn7gt vintage 1950's
6sn7 b65 tube Fivre Italy preamp tubes valve matched pair 6sn7gt vintage 1950's
6sn7 b65 tube Fivre Italy preamp tubes valve matched pair 6sn7gt vintage 1950's

6sn7 b65 tube Fivre Italy preamp tubes valve matched pair 6sn7gt vintage 1950's

$ 660.0

  • Brand: Fivre
  • Country/Region of Manufacture: Italy
  • Custom Bundle: No
  • MPN: 6sn7
  • Model: 6sn7
  • Modified Item: No
  • Type: Preamp Tubes

Description

6sn7 b65 tube fivre italy preamp tubes valve matched pair 6sn7gt vintage 1950's two tubes 6sn7 Fivre made in Italy , tested strong tubes tv7 tube tester test results 96/96 ; 96/102 (reference good at 50/50) reference of 100% = 80/80 brown base copper rods square getter black plate ribbed yellow label on glass same code 2/D on glass same code of old production rare vintage tubes for pre amplifier stage audio Double triode Socket Octal K8A Filament Heater Vf 6.3 Volt / If 0.6 Ampere / Indirect / Parallel, ~ = (AC/DC) The 6SN7 was used as an audio amplifier in the 1940-1955 period, usually in the driver stages of power amps. The designer of the famous Williamson amplifier, one of the first true high-fidelity designs, suggested use of the 6SN7 (or B65) in his 1949 revision since it is similar to the original circuit's L63 (= 6J5 ) British single triodes, four of which were used in each channel of his 1947 circuit. VERY RARE TUBES VALVES FOR PRE AMPLIFIER PREAMP DRIVER box 155