1. Updates This Month
A new page on Gas Discharge Tubes (GDTs), with schematic symbols, designators and examples.
Added a new example of a noisy waveform to the Electrical Noise page.
Added a new page (in notes format) on Spark Gaps.
Added info on transient surge waveform specification, including a graph illustration the concept behind 8/20us and similar specifications:
Moved Zener diode info into it’s own page.
Cleaned up many of the schematic symbols on this site for a consistent look and feel:
Added a diagram showing the protection diodes common to most digital CMOS pins.