DIY Lithium-Ion Solar Charger for 2-Cell Batteries
Harnessing solar power to charge lithium-ion batteries is not only energy-efficient but also an eco-conscious…
Circuits
DIY
Power & Battery
Antenna
Circuits
HF
Reception
Signal Booster enhancing RF Performance of radio receiver
If your receiver needs a higher level of signal across the entire matching network, this…
Antenna
Circuits
DIY
Tools
Building a Classic Untuned Field Strength Meter
Radio frequency work can be tricky business, especially when you need to measure signal strength…
audio
Circuits
Tools
Ham Radio Repeater Toneburst Module circuit
Ham Radio Repeater Toneburst Module generates a precise 1750Hz toneburst lasting 0.5 seconds, essential for…
audio
Circuits
DIY
Audible Continuity Tester for for Electronics Testing
This audible continuity tester uses a simple oscillator IC to generate a tone when a…
Circuits
DIY
Tools
Circuits – Simple Crystal Tester
Simple Crystal tester - The idea for this crystal tester circuit sprung out of the…
Circuits
Power & Battery
Tools
Circuit – Battery Low Power Indicator
This is a clever Battery low power indicator circuit designed by G3AGX that provides a…