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6J1 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.
Use a single 12V AC input; the circuit processing provides 6J1 tube needed positive and negative voltage and filament power supply voltage.
It is connected between VCD, CD, DVD, CD-ROM digital audio and power amplifier, can greatly reduce the "transistor sound", and make the whole sound system with a sweet natural bile feeling.
Use DC3.5/5.5*2.5 plug, AC 12V power adapter, if you want to use no plug AC 12V transformer, need to weld the power line on the circuit board. Please note that can't use DC power input, otherwise, it doesn't work.
SIZE: 77mm*75mm*52mm; Power input: AC12V 0.8A 5.5*2.5 plug; Channel: 2.0/ stereo; Potentiometer role: volume adjustment + power switch.