This High-Gain Current Sensor circuit can be deployed to detect the availability of low-level current flowing though a PCB’s copper lines or traces. Two straight-pin probes are utilized to form […]
Simple Knock Detector Circuit
The final circuit we will see deploys the ceramic sensor that is readily available. If you have experienced the difficult to detect the source of a low noise knock or […]
Servo Motor Driver and Tester Circuit
The servomotor driver and tester unit might excite two types of electronic enthusiasts namely model vehicle owners and robotic system builders. As shown in the diagram, the circuit equips a […]
9V Power Supply Circuit using SCR with Auto Switch OFF
The low loss power supply circuit explained here employs an SCR that chooses taps on the secondary of the transformer based on the load current. Thus it helps to dissipate […]
Very Low Frequency (VLF) Converter Circuit
The circuit explained below can be used for detecting and converting the very low radio frequencies or VLF in the atmosphere to audible sound. A huge number of general-coverage shortwave […]
Antenna Booster Amplifier Circuits
In this post we discuss a couple of useful RF antenna signal booster circuits, which can be used with any RF receiver circuit to amplify incoming signals to higher levels, […]