Amazon.com: NTE Electronics 1 N4742 A Zener Diode, 1 W, 5% Tolerancia, 12 V (Pack de 20) : Industrial y Científico
Amazon.com: Decode - Electronic Devices and Circuits for JNTU-H 18 Course (II - I - ECE - EC301PC) – 2020 Edition eBook : Bakshi, U. A., Godse, A. P.: Kindle Store
Zener Diodes 24 Volt 0.5W 5%: Amazon.com: Industrial & Scientific
Amazon.com: Aobao 2pcs High Voltage DC-DC Boost Converter 8V-32V to 45V-390V ZVS Step-up Booster Module Capacitor Charging Power Supply Module Adjustable Voltage Output : Electronics