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Precision adjustable positive and negative regulated power supply board for preamp/headphone amp/DAC etc.
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Jean Hiraga's Le Monstre / Monster - DIY Class-A 8W Amplifier | Amplifier, Diy amplifier, Volt ampere
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LM338 power supply PCB. I want to design one for personal use. | Headphone Reviews and Discussion - Head-Fi.org
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