TU-2 Modified WCF 6N2+6N6 Tube Headphone Amplifier Board + ALPS Potentiometer
HU-2 vacuum tube headphone amp with reference to the WCF’s circuit , and modify incorporating feedback circuit, can effectively promote the low-impedance high sensitivity headphones;
HU-2 uses CRCRC series filter regulator, AC lighting, PCB traces filament push tin treatment to ensure 6N6 large current can not heat through, with 1W Taiwanese colored ring 1% precision copper foot resistance, chemical filter capacitor, Sibi output coupling capacitor, ERO interval coupling capacitance, ELNA cathode capacitance, Yong sound YS219G headphone jack using tall gilded, ALPS27 type potentiometer
Works voltage: 0-AC170V
The tube can use 1pcs 6N2 + 2pcs 6N6. also can use 3pcs 6922.
PCB size: 160X100X1.6MM
The kit include the ALPS 27 Potentiometer. Default price is include tubes. ( 6N2+6N6 X2 )