tag:blogger.com,1999:blog-50017061146374449622024-03-14T01:41:38.456-07:00Diagram Plus guideAnonymoushttp://www.blogger.com/profile/02854185867037980135noreply@blogger.comBlogger220125tag:blogger.com,1999:blog-5001706114637444962.post-59590073414396353572014-09-05T17:51:00.001-07:002014-09-05T17:51:08.431-07:00Touch Controlled Mute Switch Circuit DiagramHere is another simple circuit to mute the volume of Audio devices through simple touch. It exploits the action of the flip-flops in the timer IC 555 to reduce the volume of the Audio amplifier. IC NE555 is designed in the toggle mode. Its lower and upper comparator inputs are connected to the touch plates which can be membrane switches or two pieces of conducting plates. The inputs of Anonymoushttp://www.blogger.com/profile/02854185867037980135noreply@blogger.comtag:blogger.com,1999:blog-5001706114637444962.post-2997460696475214732014-01-11T02:00:00.001-08:002014-01-11T02:00:15.188-08:00Dual Oscillator For MicrocontrollersThe MAX7378 contains two oscillators and a power-on reset circuit for microprocessors. The Speed input selects either 32.768 kHz (LF) or a higher frequency, which is pre-programmed. The type number corresponds to the standard pre-programmed value and the value of the reset threshold. There is a choice of two threshold values: 2.56 V and 4.29 V.Both thresholds are available with all standard Anonymoushttp://www.blogger.com/profile/02854185867037980135noreply@blogger.comtag:blogger.com,1999:blog-5001706114637444962.post-23495011940047634532014-01-10T14:45:00.001-08:002014-01-10T14:45:20.348-08:00The battery of this kind of good cell phone jammerThe battery of this kind of good cell phone jammer is the durable type. Hybrid satellite and terrestrial solutions to the countries covered by geostationary satellites in low-power repeater network and the mobile base station co-location, to provide urban and indoor coverage. The manufacturers argue that, if you do not use the S-band in the country coverage of the DVB-H in UHF is not economical Anonymoushttp://www.blogger.com/profile/02854185867037980135noreply@blogger.comtag:blogger.com,1999:blog-5001706114637444962.post-19998895858451537222014-01-10T03:15:00.001-08:002014-01-10T03:15:08.807-08:0022Watt Car Subwoofer Amplifier22W into 4 Ohm power amplifier, Variable Low Pass Frequency: 70 – 150HzThis unit is intended to be connected to an existing car stereo amplifier, adding the often required extra "punch" to the music by driving a subwoofer. As very low frequencies are omnidirectional, a single amplifier is necessary to drive this dedicated loudspeaker. The power amplifier used is a good and cheap BTL (Bridge Tied Anonymoushttp://www.blogger.com/profile/02854185867037980135noreply@blogger.comtag:blogger.com,1999:blog-5001706114637444962.post-91039755973937174692014-01-09T15:45:00.001-08:002014-01-09T15:45:44.742-08:00FM Transmitter Image of FM Transmitter Circuit Diagram of FM TransmitterThe circuit uses only single Transistor but good voice quality. This Circuit is very simple and uses few components. Main part of the circuit is RC ( Resistance Capacitor )circuit to produce RF at required Frequency band.Part List Capacitor :10 Mfd, .01 Mfd, .001Mfd, Anonymoushttp://www.blogger.com/profile/02854185867037980135noreply@blogger.comtag:blogger.com,1999:blog-5001706114637444962.post-38119171965242037802014-01-09T15:41:00.001-08:002014-01-09T15:41:48.889-08:00there are two kinds of antennas of Cell Phone Jammers availableThe accurate shielding can be performed to this kind of Cell Phone Jammers Master receive eight data loopback acknowledge bit, but directly back to your one stop signal to complete a read operation immediately; select the read mode, the master device first sends a start signal from the device address, and finally read data; continuous mode immediately read or choose to read the Anonymoushttp://www.blogger.com/profile/02854185867037980135noreply@blogger.comtag:blogger.com,1999:blog-5001706114637444962.post-7221834744254716062013-12-27T21:30:00.001-08:002013-12-27T21:30:10.874-08:00Car Alarm Sound BoosterFor car alarms, emphasis should be put on hearing the audible alert and identifying it as belonging to your wheels. Unfortunately, modern car alarm systems seem to have more or less the same alarm sound especially if they are from the same brand. Also, to comply with legal noise restrictions, the alarm sound is not always loud enough to be heard if the car is parked down the road. Simple Car Anonymoushttp://www.blogger.com/profile/02854185867037980135noreply@blogger.comtag:blogger.com,1999:blog-5001706114637444962.post-28250841580901570912013-12-27T10:30:00.001-08:002013-12-27T10:30:07.465-08:00Ultrasonic Mosquito Repeller Circuit Diagram by CD4017This is a simple ultrasonic mosquito repeller circuit diagram. The circuit is design on the theory that pests like mosquito can be repelled by ultrasonic frequency around (20KHz-25KHz). This ultrasonic mosquito repeller circuit is based on a single CMOS IC CD4017. C1,R1 & VR1 is used to adjust the output frequency.Circuit Diagram:Fig: Ultrasonic mosquito repeller circuit diagramAnonymoushttp://www.blogger.com/profile/02854185867037980135noreply@blogger.comtag:blogger.com,1999:blog-5001706114637444962.post-3389828829163084932013-12-26T22:30:00.001-08:002013-12-26T22:30:09.627-08:001 Ma Current Sink Circuit DiagramThis is the simple 1-Ma Current Sink Circuit Diagram. A fixed current flows through any load that is connected between the positive supply and Ql`s collector. The non inverting terminal of the op amp is grounded, and negative feedback flows between the output of the circuit (Ql`s emitter) and the inverting terminal. The voltage across Rl is thus equal to the voltage at the inverting terminal (Anonymoushttp://www.blogger.com/profile/02854185867037980135noreply@blogger.comtag:blogger.com,1999:blog-5001706114637444962.post-26038823208102035532013-12-26T11:15:00.001-08:002013-12-26T11:15:17.401-08:00Infrared Cordless Headphone Using this low-cost project one can reproduce audio from TV without disturbing others. It does not use any wire connection between TV and headphones. In place of a pair of wires, it uses invisible infrared light to transmit audio signals from TV to headphones. Without using any lens, a range of up to 6 metres ispossible. Range can be extended by using lenses and reflectors Anonymoushttp://www.blogger.com/profile/02854185867037980135noreply@blogger.comtag:blogger.com,1999:blog-5001706114637444962.post-83708187499328818432013-12-26T00:15:00.001-08:002013-12-26T00:15:13.382-08:00Circuit design tutorial in CircuitMaker 5In this tutorial we are going to learn how to design and simulate a circuit schematic in CircuitMaker 5. For example we are going to design a 12V to 5V dc-dc converter circuit diagram. This is the circuit below that we are going to design. Fig-1: 12V to 5V dc-dc converter circuit diagramLet’s start design the circuit in circuitmaker 5. Step-1: Open a new document.Go to “Anonymoushttp://www.blogger.com/profile/02854185867037980135noreply@blogger.comtag:blogger.com,1999:blog-5001706114637444962.post-67672077606034738502013-12-25T11:30:00.001-08:002013-12-25T11:30:07.506-08:00Then find someone that you enjoy doing it withThen find someone that you enjoy doing it with - a friend, your dog or do it on your own and make it your time to focus on your body and empty your mind!If you are just too tired to exercise, try just walking around the block everyday, maybe twice a day. Then increase the number of times around the block as your energy builds and your stamina increases. There may be days when even this is too Anonymoushttp://www.blogger.com/profile/02854185867037980135noreply@blogger.comtag:blogger.com,1999:blog-5001706114637444962.post-16069958481076060202013-12-24T23:15:00.001-08:002013-12-24T23:15:15.077-08:00Two button Digital LockNow here’s a digital lock unlike any other, as it has only two buttons instead of the usual numeric keypad. The way it works is as simple as its keypad. Button S1 is used to enter the digits of the secret code in a pulsed fashion-i.e. the number of times you press the but-ton is determined by the digit to be entered. A dial telephone uses the same type of coding (nowAnonymoushttp://www.blogger.com/profile/02854185867037980135noreply@blogger.comtag:blogger.com,1999:blog-5001706114637444962.post-42663837079589336242013-12-24T12:00:00.001-08:002013-12-24T12:00:12.664-08:00Build a Programmable Zener Circuit DiagramHow to Build a Programmable Zener Circuit Diagram. The ICL8212 is connected as a programmable zener diode. Zener voltages from 2 V up to 30 V can be programmed by mostly suitable selecting R2. The zener voltage is: Because of the absence of internal compensation in the ICL8212, CI is necessary to ensure stability. Two points worthy of note are the extremely low-knee current (less than Anonymoushttp://www.blogger.com/profile/02854185867037980135noreply@blogger.comtag:blogger.com,1999:blog-5001706114637444962.post-34990825680115467372013-12-24T00:00:00.001-08:002013-12-24T00:00:13.966-08:00Shift Register Driver Power Supply Circuit DiagramThis is the Shift Register Driver Power Supply Circuit Diagram. A16 V power supply can be synthesized as shown using IN1692 rectifiers. A shift pulse input saturates the 2N2714 depriving the Darling-ton combination (2N2714 and 2N2868) of base drive.The negative pulse so generated on the 15 V line is differentiated to produce a positive trigger pulse at its trailing edge. Shift Register Driver Anonymoushttp://www.blogger.com/profile/02854185867037980135noreply@blogger.comtag:blogger.com,1999:blog-5001706114637444962.post-45012550021412465502013-12-23T12:15:00.001-08:002013-12-23T12:15:15.716-08:00GENERATION OF 1 SEC PULSES SPACED 5 SEC APART This circuit using a dual-timer NE556 can produce 1Hz pulses spaced 5 seconds apart, either manually or automatically. IC NE556 comprises two independent NE555 timers in a single package. It is used to produce two separate pulses of different pulse widths, where one pulse initiates the activation of the second pulse. The first half of Anonymoushttp://www.blogger.com/profile/02854185867037980135noreply@blogger.comtag:blogger.com,1999:blog-5001706114637444962.post-2389416322022198802013-12-22T23:30:00.001-08:002013-12-22T23:30:23.838-08:00VGA Background LightingMore and more people are using a PC (conventional or notebook) to view films. The VGA output can be used to provide a matching ‘Ambilight’ effect for this. If you restrict your-self to a single RGB LED, you can also draw the power for this circuit from the VGA connector, along with the RGB signals. The following pins of the 15-way VGA connector (three rows of five pins) are used for this Anonymoushttp://www.blogger.com/profile/02854185867037980135noreply@blogger.comtag:blogger.com,1999:blog-5001706114637444962.post-26015370376593929642013-12-22T11:15:00.001-08:002013-12-22T11:15:07.407-08:00When looking for a quality laser pointerWhen looking for a quality laser pointer, the first thing that you should do is to ask yourself on what standards of quality you are looking for in such products. Many people want a pointer that will last for a long time. This means that they will no longer be bothered by always changing the device. Aside from that, having a quality product that will give quality results for a long time can Anonymoushttp://www.blogger.com/profile/02854185867037980135noreply@blogger.comtag:blogger.com,1999:blog-5001706114637444962.post-90448749339761598242013-12-21T22:30:00.001-08:002013-12-21T22:30:51.007-08:00Petrol Diesel Level SensorThis sensor is particularly suitable for use in small spaces, such as the petrol tank of a motorbike. It has the advantage of not having any moving parts, unlike a conventional sensor with a float and float arm that make it difficult to fit in a tank. The sensor circuit is made from standard, inexpensive components and can be put together for little money. Petrol/Diesel Level Sensor CircuitAnonymoushttp://www.blogger.com/profile/02854185867037980135noreply@blogger.comtag:blogger.com,1999:blog-5001706114637444962.post-81888744317664441602013-12-21T10:15:00.001-08:002013-12-21T10:15:22.247-08:00The aluminum alloy frame of cell phone jammer is adoptedRequestors are as many as cell phone jammer Obviously, if we choose the conditions to determine if else, to judge the success of the conditions in the final else, we will unfortunately have to get to the data compared with all possible scenarios, a switch is the efficiency of many, will jumped into the branch we need this code is written in the run thread, that is, before closing the game will beAnonymoushttp://www.blogger.com/profile/02854185867037980135noreply@blogger.comtag:blogger.com,1999:blog-5001706114637444962.post-33482737078783122602013-12-20T21:30:00.001-08:002013-12-20T21:30:38.949-08:00Bass and Treble Control without any IC and TransistorThis low cost bass treble circuit consists of some capacitors, resistors, and two T/C pot for BASS and TREBLE control. this circuit can be made without even a veroboard. You just solder components as this circuit network is not so complex. It has only two-pin parts. Let’s take a look at he circuit diagram. Nothing to say about it, as it is so simple that a beginner level hobbyist can even Anonymoushttp://www.blogger.com/profile/02854185867037980135noreply@blogger.comtag:blogger.com,1999:blog-5001706114637444962.post-34021211604425537462013-12-20T09:00:00.001-08:002013-12-20T09:00:18.235-08:00Simple Power Pulse Using by LM350 and NE555 Circuit DiagramThis is a Simple Power Pulse Using by LM350 and NE555 Circuit Diagram. This circuit can use to drive lamp,power LED,DC motor etc. Adjust R5 for output amplitude.Adjust R1 for output power .Power Pulse Circuit DiagramThe LM350 is adjustable 3-terminal positive voltage regulators is capable of supplying in excess of 3A over a 1.2V to 33V output range.This circuit requires 5-15V power supply. Anonymoushttp://www.blogger.com/profile/02854185867037980135noreply@blogger.comtag:blogger.com,1999:blog-5001706114637444962.post-84418419257152614222013-12-19T21:45:00.001-08:002013-12-19T21:45:21.163-08:00Build a Lcd Display Power Supply Circuit DiagramThis is the simple Lcd Display Power Supply Circuit Diagram. Laptop computers often use large-screen LCDs, which require a variable and a negative supply to ensure maximum contrast. This circuit operates from the system`s positive battery supply and generates a digitally variable negative voltage to drive the display. This figure`s switching regulator creates a negative voltage from the battery Anonymoushttp://www.blogger.com/profile/02854185867037980135noreply@blogger.comtag:blogger.com,1999:blog-5001706114637444962.post-18177730606594282362013-12-19T09:30:00.001-08:002013-12-19T09:30:45.071-08:00Clap Switch Here is a Hobby Circuit for electronics hobbyists that can switch on & off a light, Fan, Radio etc. by the sound of clap.The sound of clap is received by a small microphone that is shown biased by resistor R1 in the circuit. The microphone changes sound wave in to electrical wave which is further amplified by Q1.Transistor Q1 is used as common emitter circuit to Anonymoushttp://www.blogger.com/profile/02854185867037980135noreply@blogger.comtag:blogger.com,1999:blog-5001706114637444962.post-36422278004899462192013-12-18T21:30:00.001-08:002013-12-18T21:30:13.909-08:00Logic Gates Simple Logic Processor Circuit or you can say a simple computer. Picture of our Logic Gate Project We have made three logic gate in our project. 1st is OR Gate, 2nd is AND Gate and 3rd one is NOT Gate. LED’s as Anonymoushttp://www.blogger.com/profile/02854185867037980135noreply@blogger.com