ชุดคิท (ต้องนำอุปกรณ์ไปบัดกรีเอง) ปรีแอมป์แบบหลออดแก้ว 6J1 tube preamp amplifier board Pre-amp Headphone amp 6J1 valve preamp bile buffer

ชุดคิท (ต้องนำอุปกรณ์ไปบัดกรีเอง) ปรีแอมป์แบบหลออดแก้ว 6J1 tube preamp amplifier board Pre-amp Headphone amp 6J1 valve preamp bile buffer

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• 100%Brand New and High Quality
• Note: This is Diy Kits.you need do it yourself.
• SIZE: 77MM * 75MM * 57MM
• Power input: AC 12V 0.8A 5.5*2.5 plug
• Channle:2.0 stereo 
• Potentiometer Role: Volume adjustment + Power Switch

• FE-6J1-2 fever tube pre-amp board is the circuit schematic design imitation crew Music fax X-10D,to be rational optimization,more stable performance than the original machine,tube play 10% increase. This board uses a single 12V AC input,the circuit processing provides 6J1 tube needed positive and negative voltage and filament power supply voltage.
• Power works: an open power tube filament heating is started,when the boost from the zero-voltage start boosting hot filament tube,etc.,also happens to boost boosting finish,so this is the same with the guts rectification,8*470UF the capacitor filter very clean,good power supply system will not have a hum,the filament is 12V AC power supply,need two filament tube is connected in series with a DC filament also in order to reduce the noise. 

• 1pc 6J1 tube preamp amplifier board Pre-amp Headphone amp 6J1 valve preamp bile buffer diy kits

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