LM317T Voltage Regulator with Pass Transistor

Copper VV ecigarette Mod. Using One 18650, 3.7v. battery Incorporated the PTN04050C booster regulator and a DS-18689-100 Digital potentiometer. Voltage in = 3.7v to 4.12v, Voltage out = 3.24v to 6+V Variable Voltage Copper Mod See More: breaktru.com (breaktru @ ECF)



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