1959 Mullard Blackburn Long Plate 12AX7/ECC83 Tube - f92

- Excellent working condition

- Print is worn but the tube is in great condition

- B9B date code (Blackburn Great Britain, Sep. 1958)

- Early f92 construction - long plates, halo getter w/goalpost support, 180 degree getter flash

- Passed all tests on my TC 130 for strength/shorts/leaks/life. It was also live-amp tested in V1 of my 100w Marshall head. Tube performed without any operational problems.

Tested 102/102 (Minimum good is 70. New 12AX7s test 100-105)

Tube will be secured in a tube box before packing

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