Paar Telefunken 12AT7 ECC81 1965 Vakuumröhren #2
109,67 €
Test results as shown below, from the Amplitrex AT1000. These are quiet, non-microphonic tubes. Identical 1965 date codes; diamond bottoms. Small signal (i.e. 12AX7) tubes are generally checked for noise and microphonics; power tubes (i.e. 6L6) are usually not.
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