NTE Electronics 2N4403 Silicon PNP Transistor for General Purpose Amplifier and Switch, 600 mA, 40V (Pack of 5): Amazon.com: Industrial & Scientific
Amazon.com: NPN PNP Switching Transistor Set, in-line Triode TO-92 Power transistors Assorted Assortment Box Kit, Range 2N2222-S9015 & BC327-BC558, 24Value, Pack of 960 : Industrial & Scientific
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