4 Best
Tec Preamps
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Product Highlights- 【eight 470uf capacitor filter】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
- 【easy to use】using dc 5.5*2.1 socket and ac 12v transformer, you can also use ac 12v transformer without a plug, just need to weld the power cord onto the circuit board
- 【funtion】connect the 6j1 tube pre-amp between sound source and amplifier, it will effectively filter digital flavor, the music and human voice will be relatively good
- 【high frequency and low proof】a coupling capacitor is an electrodeless electrolytic capacitor with high frequency and low proof
- 【can yourself assemble them】this kit comes in parts so you can assemble them together by yourself, enjoy the process of building your own tube amplifier
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