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DUAL ADJUSTABLE POWER SUPPLY USING LM317 & LM337 | Circuit Ideas I Electronic DIY Projects I Robotics
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Generic LM317+LM337 adjustable voltage stabilized power supply board dual power supply module : Amazon.in: Electronics
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operational amplifier - Design Questions for Dual Tracking Power Supply Using 15 Volt 800mA Secondary Transformer, LM317, LM337, and Op Amp - Electrical Engineering Stack Exchange
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