It is quite simple to build a crystal oscillator by using a field impact transistor. This low voltage crystal oscillator circuit functions at comparatively low supply voltages, from 1.5 volts […]
6 V to 12 V Converter Circuit
You will discover an incredible variety of VW Beetles and Fords on the streets which continue to work on a 6 V battery. In such vehicles (and motorcycles) one can […]
Small LED Weighing Scale Meter Circuit
In this post we will discuss how to build a small weighing scale machine for quickly measuring the weights of small objects or metals, through LED bar graph indications. Undoubtedly, […]
Garden Soil Moisture Status Indicator Circuit
This garden water alarm system will tell the garden owner regarding the precise moisture status of the garden soil through LED illumination and buzzer. It will indicate through an LED […]
12 V To 6 V Converter Circuit
This converter circuit can be used to get 6 V output from a 12 V supply source. The most frequent application for this form of converter is when portable cassette […]
220 V LED Indicator Circuit
This LED circuit can be used to indicate the presence of 220 V mains AC supply, without using a transformer. The long life of LEDs make them extremely appropriate for […]