Tube type: 6BQ7A / ECC180. Each order receives two tubes selected as a closely matched pair and tested on my Hickok 799 tube tester. Tester used: Hickok 799. Each pair will be closely matched based on the Hickok 799 test readings.
Tube type: 6BQ7A / ECC180. Each order receives two tubes selected as a closely matched pair and tested on my Hickok 799 tube tester. Tester used: Hickok 799. Each pair will be closely matched based on the Hickok 799 test readings.