ESR Meter with Case NPN PNP GM328 Transistor Tester Small Volume Resistance Inductance Capacitance Meter for NPN and PNP Transistors: Amazon.com: Industrial & Scientific
600Pcs 15 Kinds of Values X 40 Pcs NPN PNP Transistor TO-92 Kit Set with Plastic Box: Amazon.com: 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
Transistor 2N3904 Bipolar (BJT) NPN General Purpose (Pack of 50): Transistor Pnp: 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
2N3904 NPN Small Signal Transistor: Electronics: Amazon.com: Industrial & Scientific
Hilitchi 24-Values 2N2222-S9018 / BC327-BC558 NPN PNP Power General Purpose Transistors Assortment Kit - Pack of 840: Amazon.com: Industrial & Scientific