6J1 tube amplifier preamp fever hifi class A power 6j2 AC 12-16V 800mA (no function) |

6J1 tube amplifier preamp fever hifi class A power 6j2 AC 12-16V 800mA (no function) |

Power supply: AC12V-16V current 800ma or above, if the voltage exceeds, please replace the capacitor

PCB board size: 79*75MM (without potentiometer and lotus seat size)

PCB board thickness: board thickness 1.6MM board (glass fiber FR4)

Front board

Finished board (no need to solder)

Note:

1. DC power input is unsuitable!

2.This product is a tube pre-stage, without power amplifier function, can not directly push speakers and passive speakers, can not push headphones, can not be used in the car, AC12-16V power supply (AC12V-16V power supply) can not use DC power supply

The electronic tube buffer is amplified by about 2 times, and it is connected between the sound source and the pre-amp or post-amp, which can effectively filter the digital taste, the human voice is better, and the bile taste is strong.

The power socket adopts DC3.5/5.5*2.1. Parents who use headless AC power input need to solder the power cord on the circuit board. Remember not to use the DC power input.

Note: The tube should be inserted to the end, and the filament of the tube should be turned on when you turn it on. Even if the tube is not plugged in, the backlight turn on, the machine will not work.