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Tube Preamplifier, High Frequency Valve Preamplifier Practical Tube Preamp, Durable Low Resistance For Headphone Amp Parts Mobile Phone

<ul><li>Connect the 6J1 tube pre-amp between sound source and , it will effectively filter digital flavor, the music and human voice will be relatively good</li><li>Eight 470UF capacitor filter is very clean, excellent power system to no hum, filaments are powered with DC 12V and need to be connected in series in order to reduce noise</li><li>Coupling capacitor is electrodeless electrolytic capacitor with high frequency and low resistance</li></ul>

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Specification: Description: A valve or tube is a type of electronic that uses vacuum tubes to increase the amplitude or power of a . Connect this 6J1 tube pre- between sound source and and it can effectively filter digital flavor. Tube produces a warmer or more natural valve sound, make music and human voice is relatively . Features: Connect the 6J1 tube pre-amp between sound source and , it will effectively filter digital flavor, the music and human voice will be relatively . Eight 470UF capacitor filter is very clean, excellent power system to no hum, filaments are powered with DC 12V and need to be connected in series in order to reduce noise. Coupling capacitor is electrodeless electrolytic capacitor with high frequency and low resistance. Using DC 5.5x2.1 socket and AC 12V transformer, you can also use AC 12V transformer without plug, just need to weld the power cord onto the circuit board. This kit comes in parts so you can assemble them together by yourself, enjoy the process of building your own tube . Specifications: Type: 6J1 tube substitution model 6AK5, 6AU6, 5654 etc. Channel Types: 2.0 / stereo Voltage &amp; Current: AC12V 0.8A or above Power Interface: 5.5 x 2.5 plug Circuit Board Size: 77 x 75mm / 3.03 x 2.95" Instruction: 1, AC 12V Input: using DC 5.5x2.1 socket and AC 12V transformer, you can also use AC 12V transformer without plug, just need to weld the power cord onto the circuit board. DC power input can not be used, or it will not work. 2, Sound Channel Input: Connected to mobile phone, computer, MP3, MP4 and many other music players. 3, Sound Channel Output: Connected to the audio input of power . 4, Power Switch/Volume Knob: Rotate the knob anticlockwise to turn down volume, and continue rotating until you hear the sound "tick" to power off. Rotate the knob clockwise until you hear the sound "tick" to power on and continue rotating to turn up volume. Package Includes: 1 x PCB Board 1 x 2W 2.2 Ohm Metal Film Resistor 6 x 1N4007 Large Current Diodes 6 x 4.7K Resistors 2 x 1K Resistors 4 x 47 Ohm Resistors 2 x 2.2K Resistors 2 x 470K Resistors 2 x 100K Resistors 2 x 200 Ohm Resistors 9 x 50V 470UF Capacitors 4 x 50V 1UF Monolithic Ceramic Capacitors 2 x D667 Transistors 2 x B647 Transistors 1 x 50K Potentiometer 2 x 3mm Blue LED 1 x DC005 Power Connector 2 x Tube Base 2 x 6J1 Tubes 2 x Base 1 set x Standoff and Screws 1 x Potentiometer

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