April 24, 2024
(4) RCA 12AX7A twin triode audio tubes
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Here are (4) RCA made in USA 12AX7A twin triode's that I have tested on my Heathkit TT-1 Mutual Conductance tester. one is branded Magnavox. The minimum for a good 12AX7 tube on this tester is 1040. They test: 1250/1350, 1250/1200, 1400/1250 and 1400/1300. I guarantee these tubes are useable and will combine shipping with your other winning bids.
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