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

8051 microcontroller Projects based Heart Rate Monitor HRM with SMS Alert

Heart Rate Monitor HRM with SMS Alert This project is 8051 microcontroller Projects based Heart Rate Monitor HRM with SMS Alert. Heart rate is sensed from the fingertip using a phototransistor / IR LED pair. This method is called photoplethysmography. Photoplethysmography is the volumetric assessment of an organ/tissue using light. IR reflection photoplethysmography is the … Read more8051 microcontroller Projects based Heart Rate Monitor HRM with SMS Alert

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

Simple Temperature Monitor Circuit

Temperature Monitor Circuit This Simple Temperature Monitor Circuit gives an indication using an LED when the battery voltage falls below 9 volts. This circuit is ideal to monitor the level of charge in 12V small batteries. These batteries are used in burglar alarm systems and portable devices. The working of this circuit depends on the … Read moreSimple Temperature Monitor Circuit