A strong clean power supply unit adopting a large power capacity R-core transformer and a directly-heated rectifier tube, 5U4G
1. The amplifier’s rectification circuit uses an R-core power transformer with more than sufficient capacity than required, a luxurious rectification circuit with a 5U4G rectifier tube and two independent left and right choke coils. Furthermore, the power transformer and choke coil are magnetically shielded to provide a cleaner and more powerful power supply to the amplifier.