2x BRIMAR 12AX7 Valves Tubes Long-Plate Eq ECC83 CV492 B339 CV4004 M8137

2x BRIMAR 12AX7 Valves. This valve has also been tested in amplifier without any noise. Ia1 = 1.12(mA), gm1 = 2(mA/V). NOS specification: Ia = 1.2(mA), gm = 1.6(mA/V). Ia2 = 1.3(mA), gm2 = 2.1(mA/V).

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