RCA 12AU7A "CLEAR TOP - SIDE GETTER" Tubes PLATINUM MATCHED on AT1000
RCA 12AU7A "CLEAR TOP" Tubes TESTS NOS. Triple Platinum Matched on Amplitrex AT1000. It's believed that the side getter contributes to the low microphonics of this tube. Wonderfully balanced airy highs, midrange warmth, and accurate bass.