electronic letter box working and construction

The circuit which is explained below is been employed as an Electronic Letter Box. When letter drop by someone into the letter box then the LED attached at the output stops blinking which indicates that there is a letter in your letter box. To identify the presence of a letter in the box we have connected a LDR as well as source of light. LDR is a special kind of resistor whose action based on the intensity of light declining on it. In the time of total darkness LDR resistance is approx 1 mega ohm ....etc

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To get full information or details of ppt for seminar on electronic letter box please have a look on the pages

http://electronicshubelectronic-letter-box-project-circuit/

http://circuiteasyelectronic-letter-box/

if you again feel trouble on ppt for seminar on electronic letter box please reply in that page and ask specific fields in ppt for seminar on electronic letter box ....etc

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To get full information or details of application and future scope of electronic letter box please have a look on the pages

http://seminarsprojects.net/Thread-electronic-letter-box-report

http://seminarsprojects.net/Thread-electronics-letter-box-using-ic-555

http://seminarsprojects.in/showthread.php?tid=68005&google_seo=icmK++&pid=127821

if you again feel trouble on application and future scope of electronic letter box please reply in that page and ask specific fields in application and future scope of electronic letter box ....etc

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I need advtantages and disadvantages of electronic letter box circuit diagram

Advantages and disadvantages of electronic letter box circuit diagram ....etc

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electronic letter box
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Whether you are writing a letter of application in answer to a job advertisement or just searching for work that has not been advertised, the aim is the same you want to get an interview.

The letter of application is likely to be the first correspondence you will have with an employer. They will judge you on this letter as to your worthiness of an interview.

Competition for jobs can be tough and your application needs to stand out. Employers may deal with hundreds of applications for the one position.

Application letters are an import ....etc

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Stationery is a mass noun referring to commercially manufactured writing materials, including cut paper, envelopes, writing implements, continuous stationery, and other office supplies. Stationery includes materials to be written on by hand (e.g., letter paper) or by equipment such as computer printers.
Originally the term stationery referred to all products sold by a stationer, whose name indicated that his book shop was on a fixed spot, usually near a university, and permanent, while medieval trading was mainly carried on by itinerant peddl ....etc

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sample letter requesting for office stationery

It takes a bit of knowledge and attention to write a sample request letter for petty cash correctly. It should contain the user s ID, date of birth, work data and other personal information. These requirements may slightly differ depending on the bank you apply to.

In his/her letter, the user must explain the reasons why he/she needs to open an account. The letter must be approved by the Imprest management team. Once approved, your account will be opened and you will actually have a bank accoun ....etc

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LETTER SERIES AND LETTER ANALOGIES
There are different types of questions on Letter Series that appear in various bank exams. For the sake
of convenience and better understanding, we will categorise the questions on Letter Series into three different types. We will look at each of these types in detail.

LETTER SERIES - TYPE I
The questions here are similar to the questions in Number Series Type 1. Instead of numbers given there, we have letters of the alpha ....etc

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Dear Sir/ madam.

We are supplied all kinds of stationery items lowest pries. If any enquirer Please contact VINOD KUMAR 8050211446

Thanking you
FOR REGARDS
SVK PENS STALL ....etc

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