Audio amplifier 6N2 pre-stage amplifier board
1 Using original 6N2 tube
2 Coupling Capacitor with Top Siemens Capacitor 0.47UF
3 resistors use five-ring metal resistors, the main circuit uses precision ± 1% of the five-ring metal film resistors to ensure a good overall signal to noise ratio.
4 PCB adopts 1.6mm thick double-sided plate, 2.0oz copper thickness, spray tin process, ensure the size of the current
The good pass performance. First-class PCB quality.
5 The power amplifier board wiring is reasonable, the current sound is small
6 with potentiometer tuning
The volume of the finished board: length 160MM width 100MM height 45MM
Power supply: AC 50-180V AC 6-12V