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  1. A

    RF related queries

    Hi, long time... I have some RF related queries. I recently assembled a mobile phone detector circuit which detects the mobile phone when texting, calling/receiving. According to the description given by the author of circuit, its range is 1.5meters. 1. When I assembled the circuit on a...
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    Nokia 3310 fbus connector

    Hi, I figured out the fbus pinout at the back (below the battery) and also at the top (below the keypad) in nokia 3310 cellphone. Now, my problem is that I dont have any compatible cable with me or in locality / online shops in India. So, any one have any idea about how to connect and bring...
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    What is a shield?

    HI, Honestly AFAIK, shielding is provided in cables and also, as given in wiki, mobile phone components are shielded. But there are many chips/boards out there by the name motor shield, arduino shield, ethernet shield etc.. what those mean actually? any help?
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    Charging circuit parameters:

    Hi, I have a rechargeable Nicd battery (3.6v) and 300mAH. - Its like three cells packed together. (1.2vx3). Now, for charging this with a 200mA transformer, I have to charge the cell for 1.8 hrs. [300/200*120%]. - correct me if i am wrong here. Now, my question is, how do i connect the...
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    MOD 6 counter using 7490

    Hi I am having six 7490 bcd counter ICs. I want to set up a bcd clock. How to create a mod six counter with 7490. And i tried to AND the o/p for the number seven (0111) and giving it to the reset pin of the IC it worked. But there must be another way without using the AND gate.? Any help...
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    Where to buy PICkit2 in India?

    Hi friends, I want to buy a Microchip PICkit2 programmer online and I am in India. Can any one please suggest me a good online store to buy it, in microchip website the price is in usd, and this is annoying for my transaction as i pay by a DD. Please do suggest me a online store in India to buy...
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    Speakers, woofers, subwoofers..

    Hi all, Its obvious from the title..what those terms mean and what are the difference between them.. I googled and studied but cannot get satisfactory answers..or i could'nt understand.Hope you guys will help me..
  8. A

    Hi mateys

    Hi friends, I like this site.. love to stay on.. I am on my UG course in electronics and communications..I hope i can get some help among you geeks..;) I am very much interested in building robots, but never had one.. I've tried.. but failure!! :( Hope i can enrich my knowledge here... I am...
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