Transistor 2N3904 Bipolar (BJT) NPN General Purpose (Pack of 50): Transistor Pnp: Amazon.com: Industrial & Scientific
Bridgold 10pcs IRF4905 IRF4905P IRF4905PBF P Channel,Power Mosfet Transistor 74 A/55 V TO-220AB: Amazon.com: Industrial & Scientific
Bridgold 10pcs MJE3055T MJE3055 NPN Bipolar (BJT) Single Transistor,10 A/60V,is Designed for General Purpose of Amplifier andswitching Applications: Amazon.com: Industrial & Scientific
NTE Electronics 2N4403 Silicon PNP Transistor for General Purpose Amplifier and Switch, 600 mA, 40V (Pack of 5): Amazon.com: Industrial & Scientific
Bridgold 20PCS BD139NPN BD140PNP (10PCS BD139 + 10PCS BD140) Single Transistor, General Purpose 80V 1.5A: Amazon.com: Industrial & Scientific
Amazon.com: 5 Pair Black 2SA1943 2SC5200 High Power Audio Transistor PNP Silicon Power Transistor : Industrial & Scientific