NTE Electronics NTE130 Silicon Power Transistor for Audio Power Amp, Medium Speed Switch, to-3 Case, 15A Continuous Collector Current, 100V Collector- Base Voltage: Communication Integrated Circuits: Amazon.com: Industrial & Scientific
Ardest 100 Pcs Standard 2N2222 NPN TO-92 Plastic-Encapsulate Power Transistors 75V 600mA for Arduino & Raspberry Pi Projects: Amazon.com: Industrial & Scientific
Amazon.com: NTE Electronics NTE121MP PNP Germanium Transistor for Audio Frequency Power Amplifier, to-3 Case, 10A Collector Current, 60V Collector- Base Voltage, Matched Pair : Industrial & Scientific