4511 Binary to Decimal decoder
This isn’t a very useful or interesting circuit but it demonstrates the prinicple of a Binary to Decimal decoder IC such as the IC 4511.
Read More Source: http://www.geocities.com/electronics3456/4511.html
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Categories: Digital Tags: 7 segment LED counter, cd4511, decade counter circuit, digital counter
LED 7 segment Count Down Alarm by PIC16F84
Here I have added two fets for the time-out switch, it is like an electronic relay, just much more reliable it can be used to sound a big horn, or what ever you like. PIC 16F84 running 4.00 MHz using crystal or resonator, not critical since this count down alarm only runs for a few minutes
Read More Source:http://www.webx.dk/oz2cpu/clock/countdown.htm
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Prescaler with Counter by IC digital 4511,74190
Digital frequency counter is being used for wide range of applications. Digital frequency counter extensively uses digital circuits and hence fairly good knowledge of digital circuits and of digital integrated circuits is required to understand the operation of the frequency counter. However a person who is not familiar with any electronics circuits and experiments has in written this article.
Source: http://www.hamradioindia.org/circuits/fcount.php Thank you.
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Categories: Digital, Meter, RF-Radio Frequency Tags: 7 segment LED counter, frequency counter, RF meter
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