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Amazon.com: NPN PNP Switching Transistor Set, Power transistors Assorted Assortment Box Kit, Range 2N2222-S9015 & BC327-BC558, 24Value, Pack of 960 : Industrial & Scientific
Transistor Assortment, Npn Transistor Transistors Assortment Kit for Industry for Plug Transistor for PNP Transistor for 2n3904 Npn Transistor: Amazon.com: Industrial & Scientific
LARSEBEI 600-Piece 15 Values Transistors Assortment Kit Box Including 2N2222-S9018 NPN PNP Power General Purpose Transistors: Amazon.com: Industrial & Scientific