The LDR based interruption counter circuit explained in this project is a circuit that will count how many times an opaque object intersects between a ray of light and an […]
Office Bell with IN/OUT Indicator Circuit
This office bell with IN/OUT indicator circuit utilizes three 7-segment, common anode displays rather than a couple of LEDs for the in/out indicator as is done commonly. As soon as […]
5 Band Graphic Equalizer Circuit
SEVERAL audiophiles are finding some great benefits of graphic equalizers in domestic along with professional sound systems. However the expenses of this sort of units have eliminated them growing to […]
Bipolar Transistor (BJT) Configurations
Transistors can be understood as an active semiconductor device having 3 pins or terminals, designed to either block or allow a bigger current in response to a smaller current. This […]
Battery Status Indicator Circuit using two Transistors only
Often a backyard electronic system could become imperfect as a result of a perishing battery. If the battery voltage is no more than 9V for a 12V operated system, the […]
Simple 220V Over and Under Voltage Protection Circuit
This very simple two transistor circuit will ensure that your home electrical and appliances are never affected by abnormal voltage fluctuations. This circuit designed to cut off the 220V supply […]