I test all tubes thoroughly and with great care. I test to the best of my ability, and I report all results honestly.
Item Tag: 7025 12AX7 ECC83
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7025/12AX7 Tung-Sol Tall Plate MaxiPreamp2/TV7 tested (1) tube lot
I test all tubes thoroughly and with great care. I test to the best of my ability, and I report all results honestly.
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MULLARD ECC83 BLACKBURN 12AX7 MC1 LONG PLATE TIGHT BAL TEST NOS VINTAGE 1957
Average NOS test results for 12AX7’s 1250 microhmos on the Hickok 600A.