• Product Instructions: You can connect the 6J1 tube pre-amp between sound source and amplifier, it will effectively filter digital flavor, and the music and human voice will be relatively good
• Wonderful Performance: 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
• Matched Transformer: This AC12V 0.8A vacuum electron tube valve preamp amplifier board uses DC 5.5*2.1 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
• Nice Kit: This 6J1 headphone amp parts musical fidelity kit comes in parts so you can assemble them together by yourself, and you can enjoy the process of building your own tube amplifier
• Excellent Capacitor: The coupling capacitor is electrodeless electrolytic capacitor with and low resistance, which makes you can res assured to use in most times

• Package Dimensions ‏ : ‎ 6.93 x 5.31 x 1.26 inches; 3.39 ounces
• Date First Available ‏ : ‎ August 7, 2020
• Manufacturer ‏ : ‎ Oumefar
• Country of Origin ‏ : ‎ China