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	<title>Circuit Project Electronic &#187; 741</title>
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	<link>http://www.eleccircuit.com</link>
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		<title>High pass active filter by LM741</title>
		<link>http://www.eleccircuit.com/high-pass-active-filter-by-lm741/</link>
		<comments>http://www.eleccircuit.com/high-pass-active-filter-by-lm741/#comments</comments>
		<pubDate>Tue, 27 Sep 2011 06:10:45 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[741]]></category>
		<category><![CDATA[oscillator generator]]></category>
		<category><![CDATA[signal generator]]></category>
		<category><![CDATA[active high pass filter circuit]]></category>
		<category><![CDATA[lm741 circuits]]></category>

		<guid isPermaLink="false">http://www.eleccircuit.com/?p=13548</guid>
		<description><![CDATA[The high pass filter circuit is a high frequency filter, only through it. In this circuit we are use operational amplifiers IC 741 number, it is allows this circuit has a lot performance,and has cut off frequency precise. Despite the possibility of multi-circuit filter,With different levels of growth and differentiation of a roll back in [...]]]></description>
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		<slash:comments>0</slash:comments>
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		<item>
		<title>Very simple voltmeter with ic741</title>
		<link>http://www.eleccircuit.com/very-simple-voltmeter-with-ic741/</link>
		<comments>http://www.eleccircuit.com/very-simple-voltmeter-with-ic741/#comments</comments>
		<pubDate>Sun, 06 Mar 2011 05:30:22 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[741]]></category>
		<category><![CDATA[basic electronics]]></category>
		<category><![CDATA[meter]]></category>
		<category><![CDATA[741 circuit diagram]]></category>
		<category><![CDATA[simple meter]]></category>
		<category><![CDATA[voltmeter circuit]]></category>

		<guid isPermaLink="false">http://www.eleccircuit.com/?p=11603</guid>
		<description><![CDATA[This circuit can be used to measure the voltage to 15 volts.Using the current from the battery 9 volt,At 23 mA only. Input circuit has a diode, to protect the Return terminal. And input impedance of the circuit, were more than 1 M ohm. Heart of the circuit is op &#8211; amp number 741.Which acts [...]]]></description>
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		<slash:comments>1</slash:comments>
		</item>
		<item>
		<title>Versatile tone control using IC 741</title>
		<link>http://www.eleccircuit.com/versatile-tone-control-using-ic-741/</link>
		<comments>http://www.eleccircuit.com/versatile-tone-control-using-ic-741/#comments</comments>
		<pubDate>Sat, 27 Nov 2010 09:39:54 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[741]]></category>
		<category><![CDATA[Tone control - Graphic Equaliser]]></category>
		<category><![CDATA[active tone control]]></category>
		<category><![CDATA[feedback tone control]]></category>
		<category><![CDATA[IC 741 circuit]]></category>

		<guid isPermaLink="false">http://www.eleccircuit.com/?p=10239</guid>
		<description><![CDATA[This tone control circuit. A circuit design feedback tone control. This helps the smooth bass voice circuit and a rate increase &#8211; reduction of the signal at 18 dB. The power supply circuit is used from 12-24 volt and Shine Power consumption is 10 mA. The audio input is entered through the C1 coupling to [...]]]></description>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Universal mono preamplifier using ic lm741</title>
		<link>http://www.eleccircuit.com/universal-mono-preamplifier-using-ic-lm741/</link>
		<comments>http://www.eleccircuit.com/universal-mono-preamplifier-using-ic-lm741/#comments</comments>
		<pubDate>Mon, 27 Sep 2010 06:23:47 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[741]]></category>
		<category><![CDATA[Pre Amplifier - microphone preamp]]></category>
		<category><![CDATA[lm741 circuit]]></category>
		<category><![CDATA[preamp IC]]></category>
		<category><![CDATA[universal preamplifier circuit]]></category>

		<guid isPermaLink="false">http://www.eleccircuit.com/?p=9215</guid>
		<description><![CDATA[This circuit is a mono pre amp circuit, which can be used with a variety of inputs.Can be applied for extending the phone and the other with When AF IN input signal to pin 3 of IC1, and The voltage input to pin 2 of IC1.The IC number LM741 used to amplifier circuit,Output at Pin [...]]]></description>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Op-amp siren sound using ic 741</title>
		<link>http://www.eleccircuit.com/op-amp-siren-sound-using-ic-741/</link>
		<comments>http://www.eleccircuit.com/op-amp-siren-sound-using-ic-741/#comments</comments>
		<pubDate>Thu, 01 Jul 2010 06:08:15 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[741]]></category>
		<category><![CDATA[alarm systems]]></category>
		<category><![CDATA[Emergency siren]]></category>
		<category><![CDATA[lm741 circuits]]></category>
		<category><![CDATA[op-amp circuit]]></category>

		<guid isPermaLink="false">http://www.eleccircuit.com/?p=7953</guid>
		<description><![CDATA[This circuit is the sound generator super siren, for use be alarm signal get by live frequency generator circuit that use , op-amp circuit. The principle works to are while still no press switch S1 will still have no the loud sound comes out from a loudspeaker SP1. When do pressure switch S1 then liberate [...]]]></description>
		<wfw:commentRss>http://www.eleccircuit.com/op-amp-siren-sound-using-ic-741/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Active high pass filter circuit using LM741</title>
		<link>http://www.eleccircuit.com/active-high-pass-filter-circuit-using-lm741/</link>
		<comments>http://www.eleccircuit.com/active-high-pass-filter-circuit-using-lm741/#comments</comments>
		<pubDate>Wed, 19 Aug 2009 16:22:24 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[741]]></category>
		<category><![CDATA[signal generator]]></category>
		<category><![CDATA[active high pass filter circuit]]></category>
		<category><![CDATA[high pass filter]]></category>
		<category><![CDATA[lm741 circuits]]></category>

		<guid isPermaLink="false">http://www.eleccircuit.com/?p=5238</guid>
		<description><![CDATA[This is active high pass filter circuit for 327Hz frequency using LM741. It will use to build Harmonic at 3 of 130.81 frequency have the value at least. More than the frequency Fundamental 30 dB, for output be sawtooth wave form for use in sound of music way system Electronic design will use the circuit [...]]]></description>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Negative to positive voltage Supply with LM741</title>
		<link>http://www.eleccircuit.com/negative-to-positive-voltage-supply-with-lm741/</link>
		<comments>http://www.eleccircuit.com/negative-to-positive-voltage-supply-with-lm741/#comments</comments>
		<pubDate>Mon, 08 Dec 2008 09:11:16 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[741]]></category>
		<category><![CDATA[op-amp circuit]]></category>
		<category><![CDATA[positive voltage modify]]></category>
		<category><![CDATA[positive voltage regulator]]></category>

		<guid isPermaLink="false">http://www.eleccircuit.com/?p=3771</guid>
		<description><![CDATA[In sometimes when friends want to modify negative voltage source from the outside is positive voltage. We try to come to see this circuit use op-amp IC LM741, be usable easily and, It can change R1,R2 for fix the expansion ratio has of the circuit with. See the detail in the circuit adds. Related Links [...]]]></description>
		<wfw:commentRss>http://www.eleccircuit.com/negative-to-positive-voltage-supply-with-lm741/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Thermal Fan Controller by IC 741 and Diode</title>
		<link>http://www.eleccircuit.com/thermal-fan-controller-by-ic-741-and-diode/</link>
		<comments>http://www.eleccircuit.com/thermal-fan-controller-by-ic-741-and-diode/#comments</comments>
		<pubDate>Sat, 25 Oct 2008 11:15:33 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[741]]></category>
		<category><![CDATA[detector]]></category>
		<category><![CDATA[Electronic Control]]></category>
		<category><![CDATA[IC741]]></category>
		<category><![CDATA[temperature diode sensor]]></category>
		<category><![CDATA[Temperature-Control]]></category>

		<guid isPermaLink="false">http://www.eleccircuit.com/?p=3618</guid>
		<description><![CDATA[The controller uses one or more ordinary silicon diodes as a sensor, and uses a cheap opamp as the amplifier. I designed this circuit to use 12V computer fans, as these are now very easy to get cheaply. These fans typically draw about 200mA when running, so a small power transistor will be fine as [...]]]></description>
		<wfw:commentRss>http://www.eleccircuit.com/thermal-fan-controller-by-ic-741-and-diode/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Protects steal touch model by IC741</title>
		<link>http://www.eleccircuit.com/protects-steal-touch-model-by-ic741/</link>
		<comments>http://www.eleccircuit.com/protects-steal-touch-model-by-ic741/#comments</comments>
		<pubDate>Fri, 17 Oct 2008 16:13:25 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[741]]></category>
		<category><![CDATA[alarm home system]]></category>
		<category><![CDATA[Security]]></category>
		<category><![CDATA[burglar alarm systems]]></category>
		<category><![CDATA[free alarm system]]></category>
		<category><![CDATA[IC741]]></category>
		<category><![CDATA[steal protect]]></category>
		<category><![CDATA[touch alarm]]></category>

		<guid isPermaLink="false">http://www.eleccircuit.com/?p=3591</guid>
		<description><![CDATA[Contain divide this friends many you may face a problem economical. A steal the very. Today I then beg for to advise the circuit protects steal again model that interesting. It is model to touch , the system will work when , steal touch at the metal detects. When you see the circuit may like [...]]]></description>
		<wfw:commentRss>http://www.eleccircuit.com/protects-steal-touch-model-by-ic741/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Dry Cell Battery Charger using LM741 and IC4011</title>
		<link>http://www.eleccircuit.com/dry-cell-battery-charger-using-lm741-and-ic4011/</link>
		<comments>http://www.eleccircuit.com/dry-cell-battery-charger-using-lm741-and-ic4011/#comments</comments>
		<pubDate>Wed, 24 Sep 2008 15:32:30 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[741]]></category>
		<category><![CDATA[battery charger]]></category>
		<category><![CDATA[CD4011]]></category>
		<category><![CDATA[dry cell battery charger]]></category>
		<category><![CDATA[dry cell battery recycling]]></category>

		<guid isPermaLink="false">http://www.eleccircuit.com/?p=3473</guid>
		<description><![CDATA[This is Dry Cell Battery Charger Circuit. That can use charger battery get that about 12 hour. When apply to power supply 9 volt the equipment that fix in the circuit use for size battery AA. If use the size C or D should devalue of Resistor RX down be 68ohm and should not lead [...]]]></description>
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		<slash:comments>0</slash:comments>
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