Where to buy electronics components online in India?

If you are a student and doing your academic projects on your own, then here are a few Embedded related component vendors who can provide you with almost any sensor, microcontrollers , interface boards, Embedded development kits etc.

1) NSK Electronics, Bangalore: NSK electronics,S.P Road, Bangalore is the most famous and most heard among the circle, They provide almost all components needed for doing a project, even i order most of my project components from them. They also have their website www.nskelectronics.in if you are interested.

Payment methods:

• Direct deposit to their bank account
• Direct purchase from their shop in SP road, Bangalore

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2) Element14 India : Element14 India which was previosly known as Farnell, is an international component distributor. Similar to Digikey and Mouser electronics, This website provides a way to order almost any component. This website asks for a SalesTax number at the time of checkout, So if you are a student or hobbyist then you can order the components from www.kitsnspares.com a website owned by EFY(Electronics for you magazine). All you need is to do is copy the part number of the component you want to order from www.element14.com website and search for that part number in www.kitsnspares.com website. When you find the component you can place an order by checking out. The advantage of this site is that, you can make payment through almost any banks net banking facility. The courier charges are also affordable. I have heard complaints about this site is that the components ordered dont arrive soon. So if you have urgent requirements this is not the site i recommend.

Payment methods for Kitsnspares:

• Netbanking
• Credit/Debit cards

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3) Sunrom Technologies: This is a well known website similar to element14/kitsnspares and provides the same payment methods and they ship worldwide. Explore more by visting the website.

Payment methods:

• Netbanking
• Credit card
• Paypal
• Western union money transfer
• Wire transfer

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4) RS Components: Found this site on search. it is similar to element14 website with slightly higher prices than element14. But most of the semiconductor parts are showing Out of Stock. 

Payment options:

• Cash/DD against delivery
• Credit card

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5) Rhydolabz.com: One more good site for ordering compoents online. i would also like to add they have a very good customer support. 

Payment methods: 

• Netbanking
• Credit cards
• Cash deposit
• Cheque/DD

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 6) Tenet Technotronics: Tenet technotronics provides major parts like Development boards and sensors and modules needed to develop your project but discrete semiconductors are not available.

Payment Methods:

• Credit cards (VISA/MASTER) 
• Debit cards
• Netbanking

7) Robokits India: One more good site for ordering parts related to robotics online. 

Payment methods: 

• Netbanking
• Credit cards
• Cash deposit
• Cheque/DD
• Paypal 

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8) Vega robo kit: Limited number of parts available not recommended as only Credit cards and Paypal are accepted for payment.

Payment Methods:

• Credit cards (VISA/MASTER) 
• Paypal

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9) Mouser Electronics: Mouser electronics is one of the global electronics components supplier. The whole world buys their parts from here. Not recommended for students as the parts are shipped from outside India and courier charges will be around 2000Rs. If you want to order parts from mouser without courier charges then get them from Aqtronics technologies, Bangalore. You can send your mouser part enquiry tosupreeth@aqtronics.com. They will reply you with the costing for each part. You can then confirm the order, so that they get the parts from Mouser Electronics and ship to you. 

Payment methods for Aqtronics Technologies:

• Cash on delivery

 Payment methods for Mouser electronics:

• Credit cards (VISA/MASTER) 

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10) Digikey.com: Digikey is the default global electronics components supplier for everyone worldwide. Even the part numbers of this site are incorporated in various PCB design tools. Not recommended for students as the parts are shipped from outside India and courier charges will be around 2000Rs. 

 Payment methods for Digikey:

• Credit cards (VISA/MASTER)

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11) RK Electro: One more site claiming to provide online purchase of components, but i was not succesful to find any part from this site.

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 12) Probots: Provides most of the components needed for embedded systems. The site offers modules, programmers and development kits attractive prices. The prices mentioned on this site are less compared to other online purchase sites.

Payment Methods : 

• Direct Cash deposit to HDF bank account
• NEFT amount transfer to bank account 

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13) Digibay:

Payment Methods : 

• Direct Cash deposit or DD payment to bank account
• Net banking or NEFT/RTGS amount transfer to bank account
• Credit Card/ Debit card support coming soon.

Shipping Options : 

• Bluedart
• DTDC

visit:1. https://www.facebook.com/ElectronicAndCommunication?ref=hl

        2. http://electrocommtech.blogspot.in/

#Murugan

Audio amplifier circuit using IC LM386

                                                  Audio Amplifier using IC LM386

Amplifiers are used to boost the strength of the input signal and give an amplified version of the signal in the output. Audio amplifiers are widely used in Stereo or Home theater systems, Mini speakers etc. There are numerous ways to build a Audio amplifier but nothing is efficient as building using a dedicated Audio amplifier IC. The above circuit diagram shows the connections and components used to build a Audio amplifier.

IC LM386:

                                                       Pin diagram of LM386

LM386 is a simple low power audio amplifier used in most of the Audio circuits for its less power consumption. This IC is capable of giving a output gain of about 200 when external components are used along with it. But when you use it without adding external components its capable of delivering amplification of 20. 

The pin 1 & 8 are meant for altering the gain level by tying up a capacitor or RC pair in between them. Audio input was fed through the Non inverting input pin while inverting input tied to the ground usually. 

WORKING OF CIRCUIT:

The IC is initially powered by means of Vcc, Resistor R1 and Capacitor C2 was used to prevent oscillations in the circuit. The Resistors R2 and Capacitor C3 plays a major role in this above circuit as it alters the output gain obtained in the output. Adding a single capacitor of 10uF will help us to obtain max gain. While using along with resistor will help you obtain a gain of about 50db. The positive terminal of C3 should be connected to pin 1 and negative to pin 8 of the IC LM386.

Capacitor C3 was used to couple the output to the speaker and POT can also be used to tailor the gain of the obtained output signal. The increase gain is only used when a very low input signal is to be amplified. You can feed any Audio signals to this circuit and this works just fine to do its purpose.

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#Murugan