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Power Transistor, Mosfet, Thyristor and Voltage Regulator Assortment Kit, 82 pcs, 24 Types: Amazon.com: Industrial & Scientific
Amazon.com: Power Board 24PIN High Performance Transistor Circuit Synchronous Power Board with LED Indication : Electronics
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Neoteck Auto Ranging Digital Multimeter AC/DC Voltage Current Ohm Capacitance Frequency Diode Transistor Audible Continuity, Multi Tester with Backlit LCD - - Amazon.com