This EL34 SE V amplifier employs common pentode EL34 vacuum tubes for the class A amplification with 6SN7 / 6SL7 as the input stage. The 6SN7 tubes are configured as two cascading stages, the common-cathode and cathode follower, respectively. The output power can reach 10W for each channel. The B+ power and two filament voltages are supplied by the HV400D variable BJT voltage regulator kit that produce clean and fast driving current to the amplifier.
·Tubes: EL34 x2 and 6SN7 / 6SL7 x2.
·Input sensitivity: 1.4V@10W
·Input impedance: 270K Ohms
·Output impedance: 4, 8 Ohms
·Output power can reach 10W for each channel.
·Use with the HV400D voltage regulator board with built-in rectifier and LC noise filtering circuitry.
·Symmetrical layout design in signal paths for both channels.
·Dedicated ground and power rails layout design.
·Two large reservoir decoupling capacitors for power rails.
·Power requirements: two 280V AC (100mA) and two 6.3V AC (1.5A)