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Lab Manual for Basic Electronics - BE by Sibasish Singh Samanta

  • Basic Electronics - BE
  • Practical
  • Electronics and Communication Engineering
  • B.Tech
  • 70 Offline Downloads
  • Uploaded 1 year ago
Sibasish Singh Samanta
Sibasish Singh Samanta
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DEPARTMENT OF ELECTRONICS AND TELECOMMUNICATION ENGINEERING OBJECTIVE: Identify different types of tools and essential equipment in Electronics Laboratory. Equipment Needed: 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. Screwdrivers: Wrench: Utility Knife: Hacksaw: Pliers: Wire Stripper: Boring Tools Soldering Tools Measurement Tools Prototyping Tools Theory Screwdrivers: These tools are made of hard steel and are tempered at the tip to loosen or tighten screws with slotted heads. Usually, it is recommended to purchase screw drivers in a complete set so that you have one for every kind of screw. Screwdrivers can be availed in different shapes and size, mainly including: Standard/Flat Screw Driver: It is a wedge-shaped driver resembling a negative sign at the tip and is used for driving screws with a single slot head. Philips Screw Driver: It has a cross tip resembling a positive (+) sign and used to drive screws with cross slot heads. Stubby Screw Driver: It has a short shank or blade and is used in tight spaces where a standard screw driver can’t be used. Wrench: A wrench is used to turn objects, usually rotary fasteners like nuts and bolts, or to keep them from turning. The main function is to drive screws with hexagonal slot heads or Allen-headed screws. In other words, it is used to drive screws in places where regular screw drivers don’t work. Utility Knife: It’s one of the essential elements while dealing with electronics as it can cut through most of the materials. It’s portable, practical, and even has a belt clip for convenient carrying. Hacksaw: It’s a fine-toothed saw made for cutting metals but it can also cut various materials like plastic and wood. These can be either manual or powered and come in different varieties. Pliers: Pliers are multi-purpose tools including the following categories: Nose Pliers: These come handy when you have to hold components with short leads that need to be soldered onto or desoldered from the PCB but cannot be held with bare hands. Side Cutting Pliers: These can also be used to trim off excess components on the circuit boards or to cut wires into shorter length before being used. Channel Lock Pliers: These are used to tighten Romex connectors in electrical boxes, removing knockouts from the boxes and adjusting expansion-type ceiling fan boxes. Linesman Pliers: These can cut, twist wires together and grip wires for pulling. They have a squared off end that is great for twisting wires, a center cutting blade and a grip area to pull wires. || Department of E& TC || B.P.I.T ,PHULBANI,ODISHA|| @ RSP BEHERA @ SSSAMANTA ||

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DEPARTMENT OF ELECTRONICS AND TELECOMMUNICATION ENGINEERING Wire Stripper: It’s a hand-held tool for removing the electrical insulation off the wires without damaging the interior wire. Manual modes need some caution during use while the automatic ones allow even the first-time users to remove insulation quickly. These tools are equipped with different sized cutting teeth for various sized wires and have a cutoff portion in order to cut the wire. Boring Tools The process of drilling and boring implies making holes with the help of revolving tools. Boring simply pushes away the material to one side without removing it while drilling detaches the material to leave a hole. Moreover, drilling is done at high speed with low torque whereby a little material is removed at each revolution whereas boring needs low speed and high torque as it has a larger radius. These tools include: Portable electric drill: boring holes in plastic or metal chassis with drill bits Mini drill: drilling holes in printed circuit boards Metal files: contain a narrow, pointed and parallel ridges at one end to which a handle can be fitted. Soldering Tools A soldering iron is a device for applying heat to melt solder to form an electrical and physical connection between two surfaces. It is composed of a heated metal tip and an insulated handle. For electrical projects, wires are usually soldered to PCBs, other wires, or terminals. The price range lies from $10 to $200 whereby basic models can be used with easy by directly plugging them into an outlet from the hand tool. Besides, the soldering iron tips are often removable and can be availed in a wide range of shapes and styles to accommodate different kinds of soldering work. Soldering Station The soldering tool stand is used to keep the soldering iron in a place away from flammable materials. The station also comes with a sponge to clean the tip of the soldering iron. Desoldering Tools These tools are used to remove the soldered wires and components on printed circuit boards for repair and troubleshooting usually when there is a fault in the connections. These include pumps and copper braid wicks. A desoldering pump draws solder away with a quick vacuum action. || Department of E& TC || B.P.I.T ,PHULBANI,ODISHA|| @ RSP BEHERA @ SSSAMANTA ||

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DEPARTMENT OF ELECTRONICS AND TELECOMMUNICATION ENGINEERING Measurement Tools With almost every electronic project, one needs to measure certain parameters associated with the device or circuit like voltage, resistance, current, or some signals, etc. For this purpose, one is required to have the following tools: Multimeter: A multimeter is quite important as it measures voltage, current, resistance, and other aspects of electricity and circuits. Usually, these are small in size, run on batteries, and carry large digital displays. There is also a knob to select the measurement function and a pair of test leads for connecting the device to the circuit. Oscilloscope Although oscilloscopes may not be needed by hobbyists and beginners, these come handy while learning electronics and troubleshooting circuits. An oscilloscope displays time-varying signals like voltage waveform patterns on a screen which help in visualizing the circuit functions. Prototyping Tools While dealing with electronic components, beginners tend to make a lot of mistakes due to lack of experience in connecting wires. So in almost every project, particularly for the beginners, it is recommended to use breadboards and zero boards for establishing connections. These prototyping tools include: a) Breadboard A breadboard is a flat plastic base with a matrix of holes in which wires and components are connected. A breadboard is used to build prototype versions of sophisticated electronic circuits by plugging wires, resistors, capacitors and other devices. This is helpful in practicing as the connection is not permanent so that the wires can be plugged in and out as per the needs. Jumper Wires Jumper wires are used on the breadboard to make connections among all the components. These can be connected to separate boards or devices as they are generally compatible with mm or 2mm headers. Zero PCB A Zero Board or Zero PCB is a board with copper patches devoid of any connections. In order to work on such a board, the user has to either solder the components or connect them by soldering their legs to the wire. || Department of E& TC || B.P.I.T ,PHULBANI,ODISHA|| @ RSP BEHERA @ SSSAMANTA || 2.54

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