- New Braunfels, Texas, United States
- US $34.99
- Jan 29th
This lot is for known value 6L6 and 12AX7 variant (6AX7) NOS tubes used in the calibration process for a Hickok 533, 533A, 534, 600, 600A, 605, 800, 800A, 6000, 6000A, or TV-7 military Hickok or Hickok-based tube tester. PLEASE SEE MY FEEDBACK FOR THESE TUBES. These tubes can also be used to gauge the measured value of another brand tester as a comparison with what a regular Hickok reads, but I have no other brand calibration information.