Build a High-Precision DIY RF Current Sniffer

Build a High-Precision DIY RF Current Sniffer: Stop RF interference in its tracks. Learn how to build two versions of the RF Current Sniffer to detect common-mode current and optimize your ham radio antenna.

Simple Incandescent Lamp Flasher Circuit Using 7555 Timer

Simple Incandescent Lamp Flasher Circuit Using 7555 Timer: Build a simple incandescent lamp flasher using a 7555 timer and MOSFETs. Ideal for DIY projects with adjustable flash rate and low parts count.