1N198 Vintage ITT Color Coded Glass Germanium Diodes Brown White Gray (2pcs) USA | eBay
Source ZBW 1N5225B IN5225 ZMM5225 20mA 0.5W zener diode 3v,glass zener diode,zener diode color code on m.alibaba.com
Zener Diode, how to know the value of the smd zener diode from the colour bands? : r/AskElectronics
identification - What type of zener diode is this? - Electrical Engineering Stack Exchange
Resistor - Wikipedia
Design of highly efficient phosphor-converted white light-emitting diodes with color rendering indices (R1 − R15) ≥ 95 for artificial lighting | Scientific Reports
Crystal Radio Diode
Diodes Tutorial: How to Test Diodes? - Utmel
Zener Diode Color Coding | Electronics Repair And Technology News
1N118 NOS Germanium Diode ITT
Zener Diode identification (color bands) | Electronics Forum (Circuits, Projects and Microcontrollers)
From Resistors to ICs Color Codes : 12 Steps (with Pictures) - Instructables
From Resistors to ICs Color Codes : 12 Steps (with Pictures) - Instructables