Long Range Transmitter Circuit - 2 to 5 Km Range

The proposed long range transmitter circuit really is very steady, harmonic free design which you can use with standard fm frequencies between 88 and 108 MHz.

Make this Stereo FM Transmitter using IC BA1404

The following posts explains a simpe to build FM stereo transmitter circuit using IC BA1404.

How to Recharge Discarded Lead Acid Batteries Using Bedinis Generator Mechanism

Lead acid batteries can sometimes be a problem to get rid of. They can also be high priced to upgrade. In case discarded in the wrong way, they have a tendency to finish up in the land fill up or even rotting of in your junkyard.

Simple Low Battery Indicator Circuit Using IC 555

The article explains a simple low battery indicator circuit using the IC 555 and a few resistors only.

Grid Mains to Generator Changeover Relay Circuit

The post explains a simple configuration which can be used as a automatic changeover circuit for switching AC grid mains to generator mains, during power failures or outages.

Full Bridge 1 KVA Inverter Circuit Using 4 N-Channel Mosfets

The following post shows how a full bridge 1 KVA inverter circuit can be built using 4 N-channel mosfets, without incorporating complicated high side driver networks or chips.

Make this Car Air Ionizer Circuit

The post discusses the construction of a car air ionizer circuit which can be used for cleansing the atmosphere of car interior from smoke, pollution, dust particles, bad odor, pollen particles etc. The circuit was requested by Mr. Edalcor Zuproc.

How to Connect 5mm LEDs to a 3.7V Li-Ion Cell

The article explains regarding how to connect and illuminate a few 5mm LEDs using a 3.7V Li-Ion cell, normally used in cell phones.

55V 110A N-Channel Mosfet IRF3205 Datasheet

The following post explains the main features of mosfet IRF3205 which is fundamentally rated with drain current at a massive 110 Amps, and voltage ranging up to 55V, ideally suitable for inverter, motor control, choppers, and converter applications.

Variable Surge Free High Current Transformerless Power Supply Circuit

The following post discusses a simple transformerless power supply circuit whose output can be varied from zero to the maximum specified voltage level. The design also ensures the availability of relatively high currents, and protection against switch ON surge currents. Designed by "Swagatam".