2 x ECC83 12AX7 PHILIPS HYPERLEC BRIVE / Mullard Plate / Tested Strong NOS Rare

ecc83-z31

Tube Lab 121 Mullard Philips u0026 GE 12AX7 sIa2 = 1,70mA S = 1,90mA/V. Where 100% is Ia = 1,20mA S = 1,6mA/V. Ia1 […]

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