DIY Kits 6N3 Vacuum Tube PreAmplifier SRPP BoardThis is Diy Kits you need do it yourself ! Descriptions: 1 Using Beijing 6N3-J military-grade tube. 2. The main filter capacitor P-hilips disassemble capacity of 450V 150UF (although it is disassembled, but the quality is better than the average domestic or Japanese capacitors), the output coupling capacitor using S-wedish RIFA 1.8UF transparent tin film capacitors, sound quality and transparency Clear. Input coupling capacitor is taken Sweden EVOX MMK 0.47UF film capacitors. 3. The resistance of the ring used metal resistors, the main loop using precision ± 1% of the ring metal film resistors to ensure a good signal to noise ratio machine. 4.PCB 1.6mm thick double-sided plate, 2.0 oz copper thickness, spray the whole process of tin, to ensure the size of the current good through performance. First-class PCB quality. 5.Transformer output voltage: 180V 65MA; 6.3V 1.2A. 6 copper silver 9-pin ceramic tube holder, installed blue LED lights. 7. The amplifier board wiring is reasonable, beautiful, the current sound is minimal. 8. The finished board size (L * W * H): 125 * 90 * 70mm 9.copper RCA seat. ​10.board default setting is 9 times magnification! Package include: 1*
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