Amazon.com: PNP NPN Transistors Kit, Three Pins Silicon Power Transistor Assorted Assortment Box Set Range 2N3904-MPS2907, 10Value,Pack of 200, by Ltvystore : Industrial & Scientific
NTE Electronics NTE85-5 NPN Silicon Transistor for General Purpose Amplifier, TO-92 Package, 0.5 Amp Continuous Collector Current, 50V Collector-Base Voltage (Pack of 5): Amazon.com: Industrial & Scientific