NTE Electronics 2N2222A Silicon NPN Transistor for Small Signal General Purpose Switching, 800 mA, 50V (Pack of 2): Amazon.com: Industrial & Scientific
Bridgold 10pcs CJ78L05 78L05 Three-Terminal Voltage Regulator ,TO-92 | eBay
LM2673 Adjustable 3A Step-Down Voltage Regulator - Datasheet
Amazon.com: McIgIcM 2n2222 Transistor, 200 unidades 2n2222 a transistor NPN 92 de 40V, 600mA, 300MHz y 625mW a través de agujero 2n2222a. : Industrial y Científico