The MC14541B (or 4541) is a low cost IC that occupies a CMOS timer consisting of a 16-stage binary counter, an internal RC-oscillator circuit and an automatic power-up reset circuit, […]
Variable Tone Generator Circuit using Magnet
Wondering how to build a tone generator circuit whose frequency could be changed or adjusted simply by moving a magnet near its sensor coil? This article will explain exactly how […]
Simple Crystal Tester Circuit
The proposed simple crystal tester circuit can be used for accurately testing the operating frequency of any standard crystal, quickly. The figure below shows a crystal checker circuit schematic. In […]
Diode Matching Circuit (Pairing Circuit)
In one of our projects we required several matched silicon diodes for accomplishing a perfectly balanced modulation design. We could easily construct it through a 9 V battery for the […]
Audio Signal Conditioner Circuit
This discussed audio signal conditioner circuit is great for sweeping weak and noisy audio or Morse-code signals. The circuit can also be utilized to clean up digital audio signals which […]
Inductive Non Contact Current Sensor Circuit
This non contact inductive current sensor circuit is designed to detect an alternating current (AC) flow within any circuit and its cables, without undergoing any direct contact with the conductor, […]