Transistor Assortment Kit, High Dielectric Strength PNP Transistor Straight Plug for NonContact Switch to Control Current: Amazon.com: Industrial & Scientific
Assorted Transistors, to 92 Semiconductor Device Three Pin Transistor 840pcs with Plastic Box for Control Current: Amazon.com: Industrial & Scientific
Transistors Assortment Kit, Current Amplification PNP Transistor High Dielectric Strength for Noncontacting Switch for Controling Current: Amazon.com: Industrial & Scientific