Electronics By INVENTIONS

• A simple LED chaser hobby circuit can be made using 555 timer and CD4017 counter IC. You can use this circuit for decorative purposes. You can easily change the LED chasing speed by varying the preset. The 555 will produce square wave output and which will act as a clock for the CD4017 counter IC which drives LEDs.
• This is a great kit for a great price. This entire kit is designed and packaged for school, college students and hobbyists for etching PCB, building electronic projects and for learning circuit assembly/soldering.
• Project Pack includes: Project instruction sheets, all electronic, electrical and miscellaneous components required to assemble the circuit. BATTERY NOT INCLUDED WITH THIS KIT. Two pieces of PCB size copper clad- single side phenolic type, and a printout of actual size PCB layout of the project.
• Project instruction sheets include the topics: schematic/circuit diagram, circuit explanation, parts list and pin configurations.
• This Kit is recommended for 12 years age and above those who have basic knowledge of electronics and ability to read and understand schematic/circuit diagram and KNOWLEDGE of BOARD ETCHING and ASSEMBLY.

• FM Wireless Microphone has been a very popular project with beginners and experienced constructors. Better frequency stability, over 500m range (under ideal conditions) and is good on microphone sensitivity. THERE IS NO WOUND COIL. It is the part of the PCB itself. Circuit works on 9V battery.
• This is a great kit for a great price. This entire kit is designed and packaged for school, college students and hobbyists for etching PCB, building electronic projects and for learning circuit assembly/soldering.
• Project Pack includes: Project instruction sheets, all electronic, electrical and miscellaneous components required to assemble the circuit. BATTERY NOT INCLUDED WITH THIS KIT. Two pieces of PCB size copper clad- single side phenolic type, and a printout of actual size PCB layout and component layout of the project.
• Project instruction sheets include the topics: schematic/circuit diagram, circuit explanation, parts list and pin configurations.
• This Kit is recommended for 12 years age and above those who have basic knowledge of electronics and ability to read and understand schematic/circuit diagram and KNOWLEDGE of BOARD ETCHING and ASSEMBLY.

• This is a 12V battery monitor project that uses 3 LEDs that light up at their respective voltages. The red LED lights up when the battery voltage is between 8 to 10V, the orange one at voltages between 10.5V to 12V and the green one when the battery voltage is above 12.5V.
• This is a great kit for a great price. This entire kit is designed and packaged for school, college students and hobbyists for etching PCB, building electronic projects and for learning circuit assembly/soldering.
• Project Pack includes: Project instruction sheets, all electronic, electrical and miscellaneous components required to assemble the circuit. BATTERY NOT INCLUDED WITH THIS KIT. Two pieces of PCB size copper clad- single side phenolic type, and a printout of actual size PCB layout and component layout of the project.
• Project instruction sheets include the topics: schematic/circuit diagram, circuit explanation, parts list and pin configurations.
• This Kit is recommended for 12 years age and above those who have basic knowledge of electronics and ability to read and understand schematic/circuit diagram and KNOWLEDGE of BOARD ETCHING and ASSEMBLY.

• This is very sensitive clap switch project. It switches ON/OFF an LED or electrical appliances through claps. The circuit can sense the sound of claps from a distance of 1-2 meters. Mic picks up sound vibrations caused by the clap.
• This is a great kit for a great price. This entire kit is designed and packaged for school, college students and hobbyists for etching PCB, building electronic projects and for learning circuit assembly/soldering.
• Project Pack includes: Project instruction sheets, all electronic, electrical and miscellaneous components required to assemble the circuit. BATTERY NOT INCLUDED WITH THIS KIT. Two pieces of PCB size copper clad- single side phenolic type, and a printout of actual size PCB layout and component layout of the project.
• Project instruction sheets include the topics: schematic/circuit diagram, circuit explanation, parts list and pin configurations.
• This Kit is recommended for 12 years age and above those who have basic knowledge of electronics and ability to read and understand schematic/circuit diagram and KNOWLEDGE of BOARD ETCHING and ASSEMBLY.

• This VU meter project uses high-performance and widely popular IC LM3914/LM3915 which can display with 20 LEDs on stereo inputs or 10 LEDs on mono input. Project is suitable for all audio systems and it can easily build.
• This is a great kit for a great price. This entire kit is designed and packaged for school, college students and hobbyists for etching PCB, building electronic projects and for learning circuit assembly/soldering.
• Project Pack includes: Project instruction sheets, all electronic, electrical and miscellaneous components required to assemble the circuit. BATTERY NOT INCLUDED WITH THIS KIT. Two pieces of PCB size copper clad- single side phenolic type, and a printout of actual size PCB layout and component layout of the project.
• Project instruction sheets include the topics: schematic/circuit diagram, circuit explanation, parts list and pin configurations.
• This Kit is recommended for 12 years age and above those who have basic knowledge of electronics and ability to read and understand schematic/circuit diagram and KNOWLEDGE of BOARD ETCHING and ASSEMBLY.

• This is a great kit for a great price. This entire kit is designed and packaged for school, college students and hobbyists for etching PCB, building electronic projects and for learning circuit assembly/soldering.
• Here is the super NEW miracle improved \"Frequency Modulation Wireless Microphone\" (BUG) with added stability, readability and capability. This project is a miniature, VHF FM (wideband) Wireless Microphone transmitter of the type that is commonly referred to as BUG. The transmitter may be received by any VHF FM radio. within 100 meters.
• This is a great kit for a great price. This entire kit is designed and packaged for school, college students and hobbyists for etching PCB, building electronic projects and for learning circuit assembly/soldering.
• Project instruction sheets include the topics: schematic/circuit diagram, circuit explanation, parts list and pin configurations.
• This Kit is recommended for 12 years age and above those who have basic knowledge of electronics and ability to read and understand schematic/circuit diagram and KNOWLEDGE of BOARD ETCHING and ASSEMBLY.

• This is a great kit for a great price. This entire kit is designed and packaged for school, college students and hobbyists for etching PCB, building electronic projects and for learning circuit assembly/soldering.
• This mobile phone detector can sense the presence of an activated mobile phone from a distance of four to five metres. So it can come handy in an examination hall or meetings where mobile phones are not permitted. The circuit can detect incoming and outgoing calls, SMS, Internet and video transmissions even if a mobile phone is kept in silent mode. When RF signal detected from mobile phone, LED blinks until the signal stops.
• Project Pack includes: Project instruction sheets, all electronic, electrical and miscellaneous components required to assemble the circuit. BATTERY NOT INCLUDED WITH THIS KIT. Two pieces of PCB size copper clad- single side phenolic type, printout of 'Quick Start PCB Guide', printout of actual size PCB layout and component layout of the project.
• Project instruction sheets include the topics: schematic/circuit diagram, circuit explanation, parts list and pin configurations.
• This Kit is recommended for 12 years age and above those who have basic knowledge of electronics and ability to read and understand schematic/circuit diagram and KNOWLEDGE of BOARD ETCHING and ASSEMBLY.

• This is long range fm transmitter project in VHF range. This circuit is coil less, PCB tracks itself act as inductor. Circuit works on battery 9V to 24 Volts. For low power transmissions 9V battery is sufficient. For high power transmissions, 10 volts to 24 volts battery can be used with a TRANSISTOR HEAT SINK to avoid overheating of transistor.
• This is a great kit for a great price. This entire kit is designed and packaged for school, college students and hobbyists for etching PCB, building electronic projects and for learning circuit assembly/soldering.
• Project Pack includes: Project instruction sheets, all electronic, electrical and miscellaneous components required to assemble the circuit. BATTERY NOT INCLUDED WITH THIS KIT. Two pieces of PCB size copper clad- single side phenolic type, and a printout of actual size PCB layout and component layout of the project.
• Project instruction sheets include the topics: schematic/circuit diagram, circuit explanation, parts list and pin configurations.
• This Kit is recommended for 12 years age and above those who have basic knowledge of electronics and ability to read and understand schematic/circuit diagram and KNOWLEDGE of BOARD ETCHING and ASSEMBLY.

• Electronic Toggle Switch project can be used for switching ON/OFF application of home appliances like fan, light etc. Project uses 12V relay and ON board ON/OFF switch. Two LEDs indicates relay state and power-on status.
• This is a great kit for a great price. This entire kit is designed and packaged for school, college students and hobbyists for etching PCB, building electronic projects and for learning circuit assembly/soldering.
• Project Pack includes: Project instruction sheets, all electronic, electrical and miscellaneous components required to assemble the circuit. BATTERY NOT INCLUDED WITH THIS KIT. Two pieces of PCB size copper clad- single side phenolic type, and a printout of actual size PCB layout and component layout of the project.
• Project instruction sheets include the topics: schematic/circuit diagram, circuit explanation, parts list and pin configurations.
• This Kit is recommended for 12 years age and above those who have basic knowledge of electronics and ability to read and understand schematic/circuit diagram and KNOWLEDGE of BOARD ETCHING and ASSEMBLY.

• 4 LED Flashes at the rate of 4 Hz. You can use this project where you want to draw attention in certain situations. Project can be used as warning light also. Project uses two NPN transistors configured as astable multivibrator. Project works on 9V battery.
• This is a great kit for a great price. This entire kit is designed and packaged for school, college students and hobbyists for etching PCB, building electronic projects and for learning circuit assembly/soldering.
• Project Pack includes: Project instruction sheets, all electronic, electrical and miscellaneous components required to assemble the circuit. BATTERY NOT INCLUDED WITH THIS KIT. Two pieces of PCB size copper clad- single side phenolic type, and a printout of actual size PCB layout and component layout of the project.
• Project instruction sheets include the topics: schematic/circuit diagram, circuit explanation, parts list and pin configurations.
• This Kit is recommended for 12 years age and above those who have basic knowledge of electronics and ability to read and understand schematic/circuit diagram and KNOWLEDGE of BOARD ETCHING and ASSEMBLY.

• This project has dual function. Either you can use this project as Dark Sensitive or Light Sensitive any one of them at a time by connecting an LDR in its respective position on the board. This is a project which operates a relay when the light falling on the LDR goes below or goes above a set point. It has two LED indicators for relay state and power-on state.
• This is a great kit for a great price. This entire kit is designed and packaged for school, college students and hobbyists for etching PCB, building electronic projects and for learning circuit assembly/soldering.
• Project Pack includes: Project instruction sheets, all electronic, electrical and miscellaneous components required to assemble the circuit. BATTERY NOT INCLUDED WITH THIS KIT. Two pieces of PCB size copper clad- single side phenolic type, and a printout of actual size PCB layout and component layout of the project.
• Project instruction sheets include the topics: schematic/circuit diagram, circuit explanation, parts list and pin configurations.
• This Kit is recommended for 12 years age and above those who have basic knowledge of electronics and ability to read and understand schematic/circuit diagram and KNOWLEDGE of BOARD ETCHING and ASSEMBLY.

• This is a pulse generator with frequency and adjustable duty cycle made with the 555 timer IC. The circuit is an astable multivibrator with a 50% pulse duty cycle. Formula is provided to calculate frequency and duty cycle.
• This is a great kit for a great price. This entire kit is designed and packaged for school, college students and hobbyists for etching PCB, building electronic projects and for learning circuit assembly/soldering.
• Project Pack includes: Project instruction sheets, all electronic, electrical and miscellaneous components required to assemble the circuit. BATTERY NOT INCLUDED WITH THIS KIT. Two pieces of PCB size copper clad- single side phenolic type, and a printout of actual size PCB layout and component layout of the project.
• Project instruction sheets include the topics: schematic/circuit diagram, circuit explanation, parts list and pin configurations.
• This Kit is recommended for 12 years age and above those who have basic knowledge of electronics and ability to read and understand schematic/circuit diagram and KNOWLEDGE of BOARD ETCHING and ASSEMBLY.

• DC voltage regulator IC LM317 is the heart of the circuit. It is Low noise provides output almost equal to the voltage of the source. Circuit has short circuit protection as well. The output voltage can be set by using a switch to select output voltages 1.5, 3, 4.5, 5, 6 and 9 volts.
• This is a great kit for a great price. This entire kit is designed and packaged for school, college students and hobbyists for etching PCB, building electronic projects and for learning circuit assembly/soldering.
• Project Pack includes: Project instruction sheets, all electronic, electrical and miscellaneous components required to assemble the circuit. BATTERY NOT INCLUDED WITH THIS KIT. Two pieces of PCB size copper clad- single side phenolic type, and a printout of actual size PCB layout and component layout of the project.
• Project instruction sheets include the topics: schematic/circuit diagram, circuit explanation, parts list and pin configurations.
• This Kit is recommended for 12 years age and above those who have basic knowledge of electronics and ability to read and understand schematic/circuit diagram and KNOWLEDGE of BOARD ETCHING and ASSEMBLY.

• This is a great kit for a great price. This entire kit is designed and packaged for school, college students and hobbyists for etching PCB, building electronic projects and for learning circuit assembly/soldering.
• This project is built around popular amplifier LM386, an 8-ohm-one-watt speaker four capacitors and a few other components. A 6V to 9V battery is used to power this project. Variable resistor controls volume.
• Project Pack includes: Project instruction sheets, all electronic, electrical and miscellaneous components required to assemble the circuit. BATTERY NOT INCLUDED WITH THIS KIT. Two pieces of PCB size copper clad- single side phenolic type, printout of 'Quick Start PCB Guide', printout of actual size PCB layout and component layout of the project.
• Project instruction sheets include the topics: schematic/circuit diagram, circuit explanation, parts list and pin configurations.
• This Kit is recommended for 12 years age and above those who have basic knowledge of electronics and ability to read and understand schematic/circuit diagram and KNOWLEDGE of BOARD ETCHING and ASSEMBLY.

• By using this single transistor based FM transmitter Voice can be transmitted up to 1000 meters in 88-108MHz range FM radio band. Long wires can be used as antenna. By adjusting the variable capacitor CV (trimmer) and spacing between coil turns frequency can be set within 88-108MHz range. To get maximum range use sensitive FM radio with external antenna.
• This is a great kit for a great price. This entire kit is designed and packaged for school, college students and hobbyists for etching PCB, building electronic projects and for learning circuit assembly/soldering.
• Project Pack includes: Project instruction sheets, all electronic, electrical and miscellaneous components required to assemble the circuit. BATTERY NOT INCLUDED WITH THIS KIT. Two pieces of PCB size copper clad- single side phenolic type, and a printout of actual size PCB layout and component layout of the project.
• Project instruction sheets include the topics: schematic/circuit diagram, circuit explanation, parts list and pin configurations.
• This Kit is recommended for 12 years age and above those who have basic knowledge of electronics and ability to read and understand schematic/circuit diagram and KNOWLEDGE of BOARD ETCHING and ASSEMBLY.

• This is Zener diode voltage regulator project using a transistor and Zener diode. If you are looking for a simple and cheap fixed DC source circuit this is best choice. The constant output of 12 volts, at max output current of 1A. The input voltage, you can select both AC (12V to 15V) and DC (15V to 18V).
• This is a great kit for a great price. This entire kit is designed and packaged for school, college students and hobbyists for etching PCB, building electronic projects and for learning circuit assembly/soldering.
• Project Pack includes: Project instruction sheets, all electronic, electrical and miscellaneous components required to assemble the circuit. BATTERY NOT INCLUDED WITH THIS KIT. Two pieces of PCB size copper clad- single side phenolic type, and a printout of actual size PCB layout and component layout of the project.
• Project instruction sheets include the topics: schematic/circuit diagram, circuit explanation, parts list and pin configurations.
• This Kit is recommended for 12 years age and above those who have basic knowledge of electronics and ability to read and understand schematic/circuit diagram and KNOWLEDGE of BOARD ETCHING and ASSEMBLY.

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