Fast Refix UsA Repair

Fast Refix UsA Repair One of Best

I built a subwoofer amplifier using an LM1875 chip! It only needs 12V to drive, the sound quality is phenomenal, and the...
07/03/2026

I built a subwoofer amplifier using an LM1875 chip! It only needs 12V to drive, the sound quality is phenomenal, and the cost is less than the price of a cup of milk tea, yet the sound quality is beyond imagination!

07/01/2026

tin wire, solder paste, solder dross, solder bars, solder droplets, solder ash, wave soldering slag.

06/30/2026
06/30/2026

Soldering

06/29/2026

wire bar processing soldering board

06/28/2026

3P soldering cable for switchboard

06/28/2026

"Equipment is 30% equipment and 70% tuning! This three-way crossover circuit clearly separates the high, mid, and low fr...
06/26/2026

"Equipment is 30% equipment and 70% tuning! This three-way crossover circuit clearly separates the high, mid, and low frequencies, making the sound instantly clear and transparent! DIY enthusiasts will be ecstatic! 🎧"

06/25/2026

Winding

06/25/2026

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Usa
New City, NY
V33168

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