PAIR 12AU7 ECC82 RCA BLACK PLATE PLATINUM MATCHED PAIR,NATO specsTV7 tested

(TWICE TESTED;. 2nd)INDIVIDUALLY LIVE AUDIO TESTED, NO SPUTTERING ,NO CRACKLING, NO HUM and NON-MICROPHONIC USING MODIFIE D DYNACO PAS II. 1st)NO SHORTS,NO GAS AND VERY STRONG TRANSCONDUCTANCE.

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