Oumefar 6J1 Vacuum Electron Tube Valve Preamp,Amplifier Electronic Diy Kit

【Definition】 A valve amplifier or tube amplifier is a type of electronic amplifier that uses vacuum tubes to increase the amplitude or power of a signal. 【Function】 Connect this preamplifier to the audio source with 6J1 tubes and effectively filter the digital flavor. Tube amplifiers produce a warmer or more natural valve sound, music and the human voice is relatively good. 【Noise Reduction】Eight 470UF capacitor filter is very clean, excellent power system lead to no hum, filaments are powered with DC 12V and need to be connected in series in order to reduce noise. 【Application】Using 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. 【DIY】The kit is divided into several parts, you can freely combine and DIY applications according to your needs, which is a good choice.