Telefunken ECC803s Pair Valve/Tube - AVO MKIV Tested (Special 12AX7, ECC83) #2

These valves that are well matched and giving good results and spec on an AVO VCM mkIV. Ia2 = 0.8 mA | S2 = 1.5 mA/V. Ia1 = 1.0 mA | S1 = 1.65 mA/V.

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