Light activated switch circuit

admin July 9, 2014 98 Comments
A Simple Light activated switch Description. This is the circuit diagram of a light activated switch based on National Semiconductors comparator IC LM 311 and a LDR. The circuit is based on a voltage comparator circuit wired around IC...
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AM Transmitter circuit

admin February 28, 2011 81 Comments
Simple AM Transmitter Description Here is the circuit diagram of a simple AM transmitter circuit that can transmit your audios to your backyard.This circuit is designed with limited  power output to match the FCC regulations and still produces enough...
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100 Watt Inverter Circuit

admin August 14, 2017 233 Comments
100 Watt Inverter-Circuit Diagram, Parts List & design Tips Description Here is a 100 Watt inverter circuit using a minimum number of components.I think it is quite difficult to make a decent one like this with further less components.Here...
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Remote control tester circuit

jacky January 21, 2014 43 Comments
Remote control tester Description. This is a simple remote controller tester circuit  based on infrared sensor IC TSOP 1738. When the IR waves fall on the sensor it output changes to low state.This makes the transistor Q1 ON and...
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Remote controlled switch circuit

admin November 15, 2011 49 Comments
Remote controlled switch for Appliance Description. Here is a versatile remote controlled  switch that can ON or OFF any appliance connected to it using a TV remote. IR remote sensor IC TSOP 1738 is used for receiving the signal....
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Function Generator Circuit

admin February 23, 2011 22 Comments
Function Generator Circuit Description. The ICL8038 is a function generator chip, capable of generating triangular, square , sine, pulse and sawtooth waveforms . From these sine, square & triangular wave forms can be made simultaneously.There is an option to...
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Lead acid battery charger circuit

admin January 21, 2014 188 Comments
Lead Acid Battery Charger Description Here is a lead acid battery charger circuit using IC LM 317.The IC here provides the correct charging voltage for the battery.A battery must be charged with 1/10 its Ah value.This charging circuit is...
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Single Chip FM Radio circuit

admin February 22, 2011 87 Comments
Single Chip FM Radio Description. Here is a compact low cost FM radio circuit using IC TDA 7000. This circuit is designed as per the data sheet and the result is excellent.Ideal for all category of electronic enthusiasts. The...
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DoorBell circuit using UM 66 IC

admin April 27, 2011 29 Comments
Doorbell Circuit Description Here is a simple and easy to build doorbell circuit using IC UM 66.The  details of UM 66  is given in the older post “Melody Generator using UM 66″. This is a slight modification of that...
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