LM3914 Battery Level Indicator Circuit Diagram

lm3914 battery level indicator

12V battery level indicator circuit using LM3914 LM3914 IC In this 12V battery level indicator circuit, LM3914 is the main component which from national semiconductors. The IC Lm3914 which can operate a wide supply voltage from 3V to 25V DC. The LM3914 can drive voltage levels and display of 10 LEDs in dot mode or bar … Read moreLM3914 Battery Level Indicator Circuit Diagram

How To Make Your Own Electric Extension Board | Extension Box Wiring At Home

Electric Extension Board

Electric Extension Board, Extension Box Wiring At Home   Presented here is an instructable to Make Your Own Electric Extension Board. In this video step by step instructable, I will show you wiring in the Extension Board. Create an extension box in your home which is cheap but very good for Digital Set Top Box to the audio system, computer to any other device … Read moreHow To Make Your Own Electric Extension Board | Extension Box Wiring At Home

How to Make Simple Water Level Indicator Alarm at Home | Homemade Water Tank Alarm DIY Project

How to Make Simple Water Level Indicator Alarm at Home | Homemade Water Tank Alarm DIY Project Simple Water Level Indicator Alarm or simple transistor based water level indicator circuit is very useful to indicate the water levels in a tank. Whenever a tank gets filled, we get alerts on particular levels. Here we have created … Read moreHow to Make Simple Water Level Indicator Alarm at Home | Homemade Water Tank Alarm DIY Project

How to Repair Computer Speakers Power Problem | How to Fix Computer Speaker

Repair solutions

How to Repair Computer Speakers Power Problem How to Fix Computer Speaker In this video explaining How to Repair Computer Speakers Power Problem those can easily find out the problem where can occurs by using this video tutorial by conducting simple steps. If your audio devices such as computer speakers, home theatres, and all electronic equipment can … Read moreHow to Repair Computer Speakers Power Problem | How to Fix Computer Speaker

FM Transmitter Bug Circuit Diagram Using BC548 Transistors

FM Transmitter Bug ckt

FM Transmitter Bug Circuit Diagram     This small FM Transmitter Bug Circuit Diagram uses a Hartley type oscillator. Normally the capacitor in the tank circuit would connect at the base of the transistor, but at VHF the base-emitter capacitance of the transistor acts as a short circuit, so in effect, it still is. The coil … Read moreFM Transmitter Bug Circuit Diagram Using BC548 Transistors

AM (amplitude modulation) Transmitter Circuit Diagram

AM Transmitter Circuit Diagram It is illegal to operate an AM Transmitter without a license in most countries. AM Transmitter Circuit Diagram is deliberately limited in power output but will provide amplitude modulation (AM) of voice over the medium wave band. The circuit is in two halves, an audio amplifier, and an RF oscillator. The oscillator is built … Read moreAM (amplitude modulation) Transmitter Circuit Diagram

Simple Single Chip Metal Detector Circuit based on IC CS209A

simple single chip metal detector circuit

Simple Single Chip Metal Detector Circuit This is a simple single chip metal detector circuit based on IC CS209A  which is from the Cherry Semiconductors. A 100uH inductor coil is used to sense the presence of metal. The IC CS209A has a built-in oscillator circuit and the coil L1 forms a part of its external … Read moreSimple Single Chip Metal Detector Circuit based on IC CS209A

Voice Modulator Circuit using IC HT8950A

IC HT8950A

Voice Modulator Circuit This is a multi-voice modulator circuit using IC HT8950A from Holtek Semiconductors. The IC HT8950A is capable of creating 7 upward or downward steps on the frequency of the input voice at a rate of 8Hz. The Voice modulator circuit using IC HT8950A also two special variation effects namely Vibrato mode and … Read moreVoice Modulator Circuit using IC HT8950A

Led Torch Light Using IC MAX660 Led Circuit Diagram

Led Torch Light Using IC MAX660 This is a simple Led Torch Light Using IC MAX660 Led Circuit Diagram from MAXIM semiconductors. The MAX 660 IC is a CMOS type monolithic type voltage converter IC for electronics projects. The MAX 660 IC can easily drive three extra bright white LEDs.The LEDs are connected in parallel … Read moreLed Torch Light Using IC MAX660 Led Circuit Diagram

Simple Touch Sensor Circuit

Touch Sensor Circuit The Simple Touch Sensor Circuit is Designed with three components such as a resistor, a transistor, and a light emitting diode. Here, both the resistor and LED connected in series with the positive supply to the collector terminal of the transistor. Select a resistor to set the current of the LED to … Read moreSimple Touch Sensor Circuit