April 24, 2024
2 Amperex Bugle Boy 12AX7 ECC83 pre-amp tubes tested
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- Source eBay
These 12AX7/ECC83 pre-amp tubes were made in Holland by Amperex and both are silkscreen labeled with the bugle boy symbol. These tubes tested as 77/79 and 79/78 on our calibrated B&K606 tester w 65 is the minimum for a good tube. They have large halo getters and gray plates. These tubes are sold used without boxes. Both silkscreens are intact.
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