Crimped connectors

Crimp connectors are typically used to terminate stranded wire. A well-engineered and well-executed crimp is designed to be gas-tight, which prevents oxygen and moisture from reaching the metals (which are often different metals) and causing corrosion. Wire crimping is typically a three step process that needs suitable connector and suitable crimping tool: In the first

Step adjustable resistor box

A decade box is a type of test equipment that can be used to substitute the interchanging of different values of certain passive components when you need adjustable value in electronics laboratory. Decade boxes are made for resistance, capacitance, and inductance. Decade boxes are typically quite expensive devices (compared to other cheap electronics parts). I

SMD soldering and repair

Here is a good collection videos on SMD soldering and replacing SMD components. Enjoy. Replacing SMD components without burning neighboring connectors without hot tweezers Desoldering Techniques One Hit Desoldering Desoldering without hot air How to Solder properly || Through-hole (THT) & Surface-mount (SMD) Sostituzione connettore alimentazione micro usb step by step How to repair bridge

Mini Electric Screwdriver

Many electronics devices have many screws in then. So opening them and closing (for repair or tear-down purposes) with normal screwdriver can feels sometimes as work. For bigger devices I use a small RYOBI cordless screwdriver with adjustable torque setting. It is suitable for medium size screws found in many electrical devices. But for those

Performing A Chip Transplant

Hackaday posting article Performing A Chip Transplant To Resurrect A Dead Board describes a situation where  the only option was to try to fix a device, which in the end involved a delicate chip transplant. The board was the Pixl.js, an LCD board with the nRF52832 SoC with its ARM Cortex M4, RAM, flash, and Bluetooth

Potato chip to TDR circuit

A time-domain reflectometer (TDR) is an electronic instrument that uses time-domain reflectometry to characterize and locate faults in metallic cables. I designed a TDR circuit many years ago for easy cable testing with oscilloscope: That circuit was also turned to an electronics kit that is sold by Far Circuits. When getting the original 74AC14 seemed

Oscilloscope with Arduino tutorials

Oscilloscope and Arduino are tools for modern makers. Here are some videos and articles that combine together Arduino and oscilloscopes: Learn Oscilloscope Basics with an Arduino Uno | AddOhms #28 Using an Oscilloscope and an Arduino Improve your Arduino programming skills – The budget oscilloscope. For more details, read the following articles: Learn Six Oscilloscope

Make simple fixtures from SMA connectors | EDN For testing SMD components you need some test fixture. A fixed-geometry fixture produces consistent and repeatable results. This article tells how you can easily make fixed-geometry fixtures out of PCB-mounted SMA connectors. You can build a fixture to measure bypass capacitors using SMA-female edge-mount connectors. The narrow-base connectors (5 mm grid) and are best