LA4440 Audio Amplifier: The LA4440 is an integrated circuit (IC) that is used as a dual audio power amplifier. It is commonly used in audio amplifiers and other electronic devices that require audio amplification. To determine if the LA4440 is working properly, you would need to test it by measuring its output voltage and comparing it to the expected values under different loads and input signals. Additionally, you could also perform a visual inspection of the device for any physical damage or signs of overheating. LA4440 Audio Amplifier Circuit A simple audio amplifier based on the LA4440 IC . This will take the headphone level output from your computer and amplify it to drive a pair of external speakers. If you are listening to music or movies on laptops and computers, this is a small project that is useful to you. The notebook speakers are never strong enough to offer a satisfactory listening experience. They give users the ability to listen to something, but for anything like mus...

How To Make An Electric Extension Board Wiring In this video how to make an Electric Extension Board wiring with two SPST Switches which means single pole single throw and two 3 Pin Sockets, and for this electrical extension box I used 3-Core cable and its length 3 meters, In this Extension Board mainly used for workbench works like soldering iron for repairing, television and power supply for domestic appliances. Homemade Extension Board Making Video:

  Soldering Iron Like most people, you’ve probably used a soldering iron to fix something around the house. But if you’re like most people, you probably don’t know much about soldering irons. That’s because you don’t really need to know much about soldering irons. As long as they get hot and make a little smoke, you’re good to go. Have you ever wondered how computers and other electronic devices are made? Well, the first step is to solder together the components that will make up the device. The first thing you need to do is get a soldering iron. You can purchase a soldering iron at a hardware store or a hobby shop As we know all the  soldering iron  having a heated metal tip and an insulated handle for safety for electric shock. Electric current flowing through the resistive heating element is bypassed and often heated by electricity. Single irons, less commonly used today than in the past, are simply a large piece of copper on the handle, heated over a ...

 Steam Vaporizer Repair Solution: All the Steam Vaporizer having common problem is heating issue. There are many types of steam vaporizers and each type has its own unique characteristics. I look for solutions to common problems for all vaporizers, and then provide solutions to individual problems with each type of vaporizer. In this article I will explain how to repair Steam Vaporizer at home, common problems occurs in evaporators power supply cable and electrodes gets corrosion (deposit rust)  How to Repair Steam Vaporizer At Home | Steam Vaporizer Not Working Solution At Home   The above video helps to how to repair steam vaporizer the following steps can be solution for it Steam vaporizer ON but not getting heat in this case we need to clean the electrodes because rust deposit on Vaporizer electrodes, The electrode where galvanic reaction(s) generate electrons - negative ions are discharged and positive ions are formed. Corrosion occurs at the anode. Cathode - Th...

The rapid increase of infectious disease cases and lack of adequate medical equipment to counter them can put the entire medical infrastructure at standstill. In times like these, it is up to engineers and technicians to come up with innovative solutions and provide extraordinary assistance.     Healthcare workers are very busy people who have to attend to the sick round the clock. And due to the widespread transmission of the highly contagious COVID-19 around the world,  a record number of infected cases have been reported. This has made their job of improving a patient’s life strenuous. Adding to that, a general shortage of ventilation machines has put the entire medical infrastructure, including the support staff in a state of helplessness. Several efforts have been made by various organisations and institutions across the globe to overcome this severe imbalance of demand and supply. One such cross-disciplinary team constituting of engineers, physicians, computer...

100W Inverter Schematic Diagram. An inverter will convert the DC voltage to an AC voltage. In most cases, the input DC voltage is usually lower than the output voltage of the inverter while the output AC is equal to the grid supply voltage 120 volts, or 240 Volts. Lets start it. Simple 100W Inverter Schematic Diagram Circuit Part List Resistors 22K Resistor 3x 220 Ohm Resistor 2x 100 Ohm Resistor 1x Diode 4007 Diode 1x 10V Zener 1x IC 4047 IC + 14 Pin IC socket 1x Capacitor 0.01uf capacitor 1x 100uf capacitor 1x MOSFETS IRF 3205 mosfet 2x Varo Board Transformer Center Tap (CT) Transformer. Input 12-0-12, while the output refer to your standard home electricity (every county may different). In the tutorial, it use 12-6-0-6-12 5 amp Transformer you can call it 120 VA transformer. You can use any kind of 12 -0-12 transformer. Please take a note that this inverter can handle up to 100w of load but be careful, on the 100w of load you should use Heatsinks with those mosfets. Sourced by :...