2x Mullard ECC35 Valves Tubes 1952 Brown Base Eq 6SL7GT CV569 VT-229
2x Mullard ECC35 Valves. Date Code: 1347 L2 (1952), 1347 1G2 (1952). This valve has also been tested in amplifier without any noise. NOS specification: Ia = 2.3(mA), gm = 2(mA/V). Ia2 = 2.8(mA), gm2 = 2.25(mA/V).