For your kind consideration is this vintage Westinghouse 12AX7A preamp tube with a date stamp of 66-43. It has grey ladder plates, a halo getter, and the pins are in good condition. We also have another of the same tube with very close values in another listing. Enjoy!
Tested on our calibrated Hickok 533A and reads Good on the Good/Bad scale on both Normal and Life Test settings. Passes tests for shorts and gas. Mutual Conductance read at 1100/1100 with 1250 being considered new. Overall this is a strong tube with both sides being balanced.
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