Fuhjythy DC 9-12V VU Level Audio Meter Driver Board DB Level Meter Amplifier IC BA6138 Double-Sided Circuit Board

1. Using professional audio VU driver IC, not the TA7318 we used before, this IC contains square root dynamic compression circuit, logarithmic output characteristics, to avoid the small signal pointer does not move, when the signal is large, the pointer hits the bottom The phenomenon. 2. The IC has a mute function. The mute function pin get a low level at the moment of power-on, which can avoid the phenomenon of the pointer hitting the bottom at the moment of power-on. In order to comply with the boot habit, the pointer swing with a small swing. 4. The double-sided circuit board is used to the firmness of the crimping terminal, so that the pads of the terminal may not be loose after multiple wiring. 3. The circuit uses 6-12VDC power supply, using IC BA6138, it be very convenient to use. 5. Each drive board has been tested and adjusted by our professional test stand to the consistency of quality. The design and layout of board are beautiful and reasonable, and there is no interference and self-excitation. Each board has been tested and adjusted by our professional test stand. There is no special requirement. We input 1W/8 ohm (2.83V), and use the P-55 meter to do the load test.