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(With tube rectifier to do, more than the ordinary sweet and smooth voice rectifier)
1 tube using Beijing 6N3
2 main filter capacitors are imported 450V270UF, coupling capacitors are imported from Germany Weimar capacitor top
3 resistors use metal rings 1% resistors, ensure the machine a good signal to noise ratio.
4.PCB 1.6mm thick double-sided sheet used, 2.0 oz copper thickness, HASL whole process to ensure the size of the current through the good performance. First-class quality of the PCB.
5. The power amplifier board layout is reasonable, beautiful, small current sound
size: 12.5cm *9cm*7cm
High Voltage: AC150V-0-AC150V (current 10MA more)
Filament voltage: AC6.3V (4A above)