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	<title>Electronic Circuits and Diagram-Electronics Projects and Design &#187; Fun &amp; Game Circuits</title>
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	<description>An Authentic Resource on Electronics</description>
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		<item>
		<title>Hobby Electronics Circuits and Projects</title>
		<link>http://www.circuitstoday.com/hobby-electronics-circuits-and-projects</link>
		<comments>http://www.circuitstoday.com/hobby-electronics-circuits-and-projects#comments</comments>
		<pubDate>Sat, 12 Nov 2011 12:15:11 +0000</pubDate>
		<dc:creator>john</dc:creator>
				<category><![CDATA[Fun & Game Circuits]]></category>
		<category><![CDATA[Projects]]></category>
		<category><![CDATA[Electronic Projects]]></category>
		<category><![CDATA[hobby circuits]]></category>
		<category><![CDATA[hobby projects]]></category>

		<guid isPermaLink="false">http://www.circuitstoday.com/?p=6849</guid>
		<description><![CDATA[For all electronic hobbyists out there, CircuitsToday is listing some of our own hobby electronic circuits for you. Most of these circuits have been tested by us. You can bring in your own modifications to the circuit. For beginners, these electronic hobby projects may be a little difficult. You can feel free to comment below and ask whatever you want to know. We will help you with whatever information we can provide. Click on the link of each heading given in the list below, to go to the main content. Do not forget to check out the comments as well,...]]></description>
		<wfw:commentRss>http://www.circuitstoday.com/hobby-electronics-circuits-and-projects/feed</wfw:commentRss>
		<slash:comments>2</slash:comments>
		</item>
		<item>
		<title>Voice modulator circuit</title>
		<link>http://www.circuitstoday.com/voice-modulator-circuit</link>
		<comments>http://www.circuitstoday.com/voice-modulator-circuit#comments</comments>
		<pubDate>Thu, 24 Sep 2009 09:55:57 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Audio Circuits]]></category>
		<category><![CDATA[Fun & Game Circuits]]></category>
		<category><![CDATA[Audio circuits]]></category>
		<category><![CDATA[circuit diagram]]></category>

		<guid isPermaLink="false">http://www.circuitstoday.com/?p=2360</guid>
		<description><![CDATA[Description. This is a very versatile voice modulator circuit using IC HT8950A from Holtek Semiconductors. The IC is capable of creating 7 upward or downward steps on the frequency of the input voice at a rate of 8Hz. There is also two special variation effects namely Vibrato mode and Robot mode. This circuit finds a lot of application in systems like telephone, speech processors, toys, mixers etc. A microphone is used to pick up the input voice. Push button switches S2 and S3 can be used for the upward and downward frequency stepping .Push button switch S1 can be used...]]></description>
		<wfw:commentRss>http://www.circuitstoday.com/voice-modulator-circuit/feed</wfw:commentRss>
		<slash:comments>4</slash:comments>
		</item>
		<item>
		<title>Jet engine sound generator</title>
		<link>http://www.circuitstoday.com/jet-engine-sound-generator</link>
		<comments>http://www.circuitstoday.com/jet-engine-sound-generator#comments</comments>
		<pubDate>Wed, 19 Aug 2009 10:13:56 +0000</pubDate>
		<dc:creator>john</dc:creator>
				<category><![CDATA[Audio Circuits]]></category>
		<category><![CDATA[Fun & Game Circuits]]></category>
		<category><![CDATA[Audio circuits]]></category>
		<category><![CDATA[circuit diagram]]></category>

		<guid isPermaLink="false">http://www.circuitstoday.com/?p=1364</guid>
		<description><![CDATA[Description. This jet engine sound generator circuit is based on the sound generator IC HT2844P from Holtek Semiconductors. This particular IC can make four sounds namely low speed sound of jet engine, high speed sound of jet engine, missile sound and machine gun sound. Each of these sounds can be activated by connecting the pins 12, 13, 14and 15 to ground by using the respective push button switches. Resistor R3 can be used for manually increasing or decreasing the speed.LED D1 gives a visible indication of the sound. Circuit diagram. Notes. The circuit can be powered from a 3V battery....]]></description>
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		<slash:comments>11</slash:comments>
		</item>
		<item>
		<title>Whistle to beep circuit</title>
		<link>http://www.circuitstoday.com/whistle-to-beep-circuit</link>
		<comments>http://www.circuitstoday.com/whistle-to-beep-circuit#comments</comments>
		<pubDate>Wed, 01 Jul 2009 07:53:21 +0000</pubDate>
		<dc:creator>john</dc:creator>
				<category><![CDATA[Fun & Game Circuits]]></category>
		<category><![CDATA[Tone generator circuits]]></category>
		<category><![CDATA[circuit design]]></category>
		<category><![CDATA[circuit diagram]]></category>

		<guid isPermaLink="false">http://www.circuitstoday.com/?p=1131</guid>
		<description><![CDATA[Description. This simple circuit produces a beeping sound that lasts for around 3 seconds whenever you make a whistle. The CMOS Hex inverter CD4049 is the heart of this circuit. Out of the six inverters in CD4049, U1a is wired as an audio amplifier which amplifies the signal picked up by the microphone M1.The U1b is wired as a band pass filter with center frequency around 2KHz.The filter is necessary in order to pass the frequency corresponding to whistling sound and suppress all other frequencies .If the filter is not there, the circuit could easily get false triggered.U1d is wired...]]></description>
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		<slash:comments>6</slash:comments>
		</item>
		<item>
		<title>Digital dice circuit</title>
		<link>http://www.circuitstoday.com/digital-dice-circuit</link>
		<comments>http://www.circuitstoday.com/digital-dice-circuit#comments</comments>
		<pubDate>Tue, 16 Jun 2009 09:12:28 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Fun & Game Circuits]]></category>

		<guid isPermaLink="false">http://www.circuitstoday.com/?p=1098</guid>
		<description><![CDATA[Description. This is a simple and easy to construct digital dice circuit. The circuit is based on a single IC, CD4060B.The dice consists of six LEDs marked D1 to D6.The number of LEDs glowing indicates the numeral. The heart of this circuit is 14 stage binary ripple counter IC CD4060B.The IC also has a built-in oscillator. The oscillator output (here 2 KHz) is used to clock the binary ripple counter. The counter increments by one in its natural count sequence each time it is clocked. The oscillator in initially inhibited as long as the pushbutton switch S2 is not pressed....]]></description>
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		<slash:comments>1</slash:comments>
		</item>
		<item>
		<title>Canary chirp generator</title>
		<link>http://www.circuitstoday.com/canary-chirp-generator</link>
		<comments>http://www.circuitstoday.com/canary-chirp-generator#comments</comments>
		<pubDate>Mon, 30 Mar 2009 11:38:13 +0000</pubDate>
		<dc:creator>john</dc:creator>
				<category><![CDATA[Fun & Game Circuits]]></category>
		<category><![CDATA[Tone generator circuits]]></category>
		<category><![CDATA[circuit design]]></category>
		<category><![CDATA[circuit diagram]]></category>

		<guid isPermaLink="false">http://www.circuitstoday.com/?p=748</guid>
		<description><![CDATA[Description. This is a simple electronic alarm circuit that imitates the chirping of a canary. The circuit is nothing but a Hartley oscillator with few more passive components added. As the capacitor C1 charges through the resistor R1 and the transistor Q1 is driven to cut off. This makes the oscillations to stop. As the capacitor discharges through the Resistor R1 and base emitter junction of the transistor the oscillation start again. Actually the R1 and C1 are the components that make the characteristic chirping sound. Circuit diagram with Parts list. Notes. Assemble the circuit on a general purpose PCB....]]></description>
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		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Single chip metal detector circuit</title>
		<link>http://www.circuitstoday.com/single-chip-metal-detector-circuit</link>
		<comments>http://www.circuitstoday.com/single-chip-metal-detector-circuit#comments</comments>
		<pubDate>Wed, 25 Mar 2009 09:33:51 +0000</pubDate>
		<dc:creator>john</dc:creator>
				<category><![CDATA[Fun & Game Circuits]]></category>
		<category><![CDATA[Sensor Circuits]]></category>

		<guid isPermaLink="false">http://www.circuitstoday.com/?p=686</guid>
		<description><![CDATA[Description. This is a simple single chip metal detector circuit based on IC CS209A from the Cherry Semiconductors. A 100uH coil is used to sense the presence of metal. The IC CS209A has a built in oscillator circuit and the coil L1 forms a part of its external LC circuit which determines the frequency of oscillation. The inductance of the coil change in the presence of metals and the resultant change in oscillation is demodulated to create an alarm. The LED gives a visual indication too. This circuit can sense metals up to a distance of few inches. Circuit diagram...]]></description>
		<wfw:commentRss>http://www.circuitstoday.com/single-chip-metal-detector-circuit/feed</wfw:commentRss>
		<slash:comments>22</slash:comments>
		</item>
		<item>
		<title>Electronic toss circuit</title>
		<link>http://www.circuitstoday.com/electronic-toss-circuit</link>
		<comments>http://www.circuitstoday.com/electronic-toss-circuit#comments</comments>
		<pubDate>Sun, 30 Nov 2008 12:45:47 +0000</pubDate>
		<dc:creator>jacky</dc:creator>
				<category><![CDATA[Fun & Game Circuits]]></category>
		<category><![CDATA[555 timer]]></category>
		<category><![CDATA[Electronic Circuits]]></category>
		<category><![CDATA[NE555 timer]]></category>

		<guid isPermaLink="false">http://www.circuitstoday.com/electronic-toss-circuit</guid>
		<description><![CDATA[Description. The circuit given here can be used for tossing head or tail. There are many games in which a tossing is required to start and this circuit can be used in all such instances. The circuit uses two ICs NE 555 timer (IC1) and 74LS76 dual JK flip flop (IC2).The IC 1 is wired as an astable multi vibrator operating at 10Hz.The output of IC1 is inverted by using the transistor Q1.The collector of Q1 is connected to the pin 1 of IC2 via the push button switch S1.The IC2 is wired in toggle mode. When push button S1...]]></description>
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		<slash:comments>12</slash:comments>
		</item>
		<item>
		<title>Puff to OFF LED circuit.</title>
		<link>http://www.circuitstoday.com/puff-to-off-led-circuit</link>
		<comments>http://www.circuitstoday.com/puff-to-off-led-circuit#comments</comments>
		<pubDate>Thu, 04 Sep 2008 15:50:36 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Fun & Game Circuits]]></category>
		<category><![CDATA[Home Circuits]]></category>
		<category><![CDATA[Light Related]]></category>
		<category><![CDATA[circuit design]]></category>
		<category><![CDATA[circuit diagram]]></category>
		<category><![CDATA[hobby circuits]]></category>
		<category><![CDATA[hobby projects]]></category>

		<guid isPermaLink="false">http://www.circuitstoday.com/?p=482</guid>
		<description><![CDATA[Descrption. This is a simple circuit in which the glowing LED can be switched OFF just by a puff. A condenser mic (M1) is used to sense your puff. When the push button S1 is pressed, the transistors Q2 and Q3 wired as latching pair gets activated and drives the LED to glow. The LED remains in this condition. When you puff on the condenser mic, the sound pressure is converted into a voltage signal at its output. This voltage signal will be amplified by the transistor Q1.Since the collector of the Q1 is coupled to the emitter of the...]]></description>
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		<slash:comments>11</slash:comments>
		</item>
		<item>
		<title>Dancing light.</title>
		<link>http://www.circuitstoday.com/dancing-light</link>
		<comments>http://www.circuitstoday.com/dancing-light#comments</comments>
		<pubDate>Wed, 13 Aug 2008 15:02:15 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Fun & Game Circuits]]></category>
		<category><![CDATA[Lighting Circuits]]></category>

		<guid isPermaLink="false">http://www.circuitstoday.com/?p=423</guid>
		<description><![CDATA[Description. Here is a simple dancing light circuit based on NE555 (IC1) &#38; CD4017 (IC2) . The IC1 is wired as an astable multivibrator to provide the clock pulses for the CD4017. For each clock pulse receiving at the clock input (pin14) of IC CD4017, the outputs Q0 to Q9 (refer pin diagram of CD 4017) becomes high one by one alternatively. The LEDs connected to these pins glow in the same fashion to give a dancing effect. The speed of the dancing LEDs depend on the frequency of the clock pulses generated by the IC1. Circuit diagram with Parts...]]></description>
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		<slash:comments>37</slash:comments>
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