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.

Circuits – White LED Torch

 

This white led torch circuit provides an effective solution for powering white LEDs. It is ideal for flashlights, emergency lighting, and various other applications. The circuit operates efficiently from one or two primary cell batteries.

https://vu3dxr.in/circuits-white-led-torch/

Incandescent Lamp Flasher using IRF510 HexFET

 

The circuit  Incandescent Lamp Flasher in Figure is built around two power FETs, which are configured as a simple astable multivibrator to alternately  switch the two lamps on and off. The R&C values given in the Parts List sets the flash rate to about 1⁄3 Hz. By varying either the resistor or capacitor values almost any flash rate can be achieved.

https://vu3dxr.in/incandescent-lamp-flasher-using-irf510-hexfet/