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Here are presented som good online sourses of hobby electronics and some of the products you can find there. Firther down you will also find short explanations about some commonly used electronic components.
stores where you can find hobby electronic kits and components
Apart from electronic project lab kits and electronic builing kits, you can find many more things in these stores: Wireless models of aircrafts cars and boats. Electronic sets, telescopes, computers and a lot more. Models in all size and prize cathegories, and suitable for all ages. Electric driven models that are suitable for indoor and outdoor use, and extreme speedy gas driven models for the advanced modeller.
HobbyTron - This is a general hobby store with a huge inventory of electronics laboratory kits, electronic building sets and electronic components. You can also find components for professional laboratory and workshop use here.
Trend Times Toys - This is a general hobby store with an inventory that differs somewhat from that of HobbyTron. There are things for all age groups, but somewhat more for the youngest kids. You can find several electricity kits and science kits suited for kids here.
Newegg - All kind of electronics, including electronic project kits, Computers, cellphones, audio, video, gaming, components, software. - This is a big store where you can find a lot of technical items for daily use and many more special products for professional use. The main inventory group of the store is electronics. Among the products are: computers. Electronic components. Consumer electronics like home theaters, audio, video and cellphones. Gaming, Networking equipment, including routers, senders, receivers, surveillance, automtion and security. Office solutions. Software. Car electronics and other automotive equipment. Tools for home and work. Industrial processing mashines. Health, fitness and sport. Binoculars. Fishing equipment. Watches, fashion, jewelry and other apparel. Hobby and toys.
General electronic project lab kits and building sets
Electronic circuits with specific functions, ready assambled circuits and building kits for specific circuits
By going through these banner you can browse for many more specific electronic circuits or kits to build specific electronic devices, like radio kits, burglery alarm kits, surveillance kits, ligting controle, and much more.
Some tools for electronic work
Electronic devices for home and work
Good shops for all types of electronic devices for the home and business life - Table PCs, laptop PCs, notebook PCs, PDAs, Television/video/audio equipment, DVD players / recorders, MP3 Players, iPods, satellite audio, teadphones, electonic map and GPS navigation units, electronic equipments for home and mobile use, telephones, fax, webcameras, monitors, scanners, printers, projectors, all type of techical units and accessories for electronic equipment.
You also find in these collection accessories for all types of laptop equipment from all brands and for all models for good prizes: Examples: Laptop Batteries, PDA Batteries, MP3 Batteries, Digital. Camera Batteries, Camcorder Batteries, Universal Batteries, AC Adapters, Car Adapters, Airplane Adapters, Universal. Adapters, Printer Power Supplies, Chargers. GPS Receivers, Sync Cords, Fiber Optic Cables, HDMI. Cables, DC-DC Plugs, RPTV Lamps, Projector Lamps, iPod Accessories, MP3 Accessories, PDA Accessories. And more.
More cellphones, computers and all other electronics, please click here - Unlocked cellphones and cellphones with plans, internet hosting, table PCs and laptops, PDAs, computer accessories, security and surveillance equipment, software and much more.
About Electronic Components
Condenser: A condenser is able to store elctric energy. It consists of two plates near to each other with an isolating sheet between, usually the plates are in the form of two foils scrolled together to a cylindrical shape. When a voltage is applied over the plates one plate will be filled with elctrones and the other void from electrones. When the plates then are short-shut an electric current will go between the plats and neutralize the charge again. A condeser will after a short time shut for current going in one direction, but will allow alternating current of a high enough frequency to go through it.
Coil: A coil is a wire wound up. sometimes around an iron kernel. When a current is initiated acros a coil, the energy of the current is used to build up a magnetic field in the coil, and this process will resist the current. When however the current has reached a stibile state, it is let through unhindered. This process will make the coil work a a resitor to altrnating currents, and if the frequency of the current is high enough, it will be stopped alltogether.
Diode: A diode is a device able to slip through current in one direction and stop current in the other direction, or a sort fo a rectifier. A diode is composed of two differently doped semicondutor elements in contact with each other
Transisror: A transistor is a component consisting of three stacked semiconductor sheets, each with a contact poin. A voltage applied over the outer sheets will cause a current. If however a simultaneous voltage is applied through an outer sheet and the mid sheet it will allow the first current to get through or hinder it depending on the direction of this voltage. In this way a transitor can be used to let small voltage alternations in one circuit regulate the size of a current in another circuit with a much greater applied voltage.
Resistor: A resistor is an element that resist and reduces the current caused by a voltage applied across it.
Transformer: A transformer is a device that can transform a strong alternating current of a low voltage level to a weaker alternating current of a higher voltage level or oppsitely. It consist of two coilds with different number of wounds, usually around a common iron kernel and arranged so thet a magnetic field generated by one coil go through the other also. One coil can be wound over the other or they can have a different places on the iron kernel. Transformers can vary considerably in size from small components to great devices. The voltage from the source or primary circuit is applied over one of the coils and the resultant voltage/current, the secondary circuit, is taken out over the other coil. If the secundary circuit has more wounds than the primary circuit, the secundary voltage will be greater that the primary voltage. When applied oppositely the resultant voltage will be lower.