1 Set Kit Amplificatore Cuffie HV-1 Scheda con Potenziometro ALPS 27 Fai da Te
NOTE: This is a DIY kit, All parts need to weld and test them. AUDIOPHILE MKP 4U7 400V 3% precision capacitance. 2, 300MV headphone dedicated protection circuit, A1 queen ST 33078 N dual op amp, ST DB139 BD140 power output tube.