it has significant thermal effects

The shape is a rectangular-shaped workpiece, it normally takes two vertical datum, and perpendicular to the workpiece plane (as shown in Figure 6.28). (2) the shape of the correction benchmark, in the hole for the processing benchmark. Either rectangular, circular or other shaped workpiece, should prepare a workpiece on the next plane to maintain a vertical correction benchmark, this time one

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Rear Light After Glow For Bicycles

This article is of interest only to readers whose bicycle lights are powered by a dynamo. The laws on bicycle lights in the United Kingdom are stricter than in other countries and a dynamo is, therefore, a rarity in this country. From the point of view of traffic safety it is advisable (in UK obligatory) for cyclists to have the rear lamp of their bicycle to light even when they are at standstill

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It is the function selections of cell phone jammer

It is the function selections of  cell phone jammer . Emission values of less than 1.0 watts / kg, its not harmful to humans. The Bluetooth antenna is not on board the middle, otherwise interfere too much, the effect that the poor can not use. Fixed the antenna bracket and the motherboard must have a positioning hole of the card hook is recommended fixed with screws. Can not use the gum way,

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Automatic Windshield Washer Control Circuit

Most, if not all, recent cars have an impressive amount of electronics, whether it be ABS brake systems, engine control with injection calculators, airbag activation, or other various functions, called comfort functions. Among them is one which we tend to forget because it has become so common today. It turns on the windshield wipers automatically for a few seconds after the windshield cleaner.

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CD Rom Drive as Digital Audio CD Player

A CD-ROM drive can be used as a stand-alone unit for playing digital audio CDs without interfacing with a computer. The stereo output of CD player available at the audio jack can be amplified using audio input facility which is normally available on a tape-deck/tape-recorder or a stereo amplifier. Audio socket on front/rear of the CD-ROM drive is capable of driving headphones or speakers of

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Electric Window Fence Charger

Here is the circuit of a simple electric window charger. With a couple of minor circuit variations, it can be used as an electric fence charger too. A standard 12V, 7Ah sealed maintenance-free (SMF) UPS battery is required for powering the entire unit. Any component layout and mounting plan can be used. However, try to keep the output terminals of transformer X1 away from the circuit board. Timer

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HONDA CB100 ELECTRICAL MOTORCYCLE ELECTRONIC DIAGRAM

HONDA CB100 Electrical MOTORCYCLE ELECTRONIC DIAGRAMHonda parts such as the headlight control switch, front stop switch, main switch, rear stop switch, selenium rectifier, wire harness coupler, ground to frame, right rear turn signal light, tail/stop light, left rear turn signal light, fuse, battery, winker relay, neutral switch, ac generator, condenser, contact breaker, ignition coil, dc horn,

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LED Flasher

The idea behind this economical flashing LED indicator is very simple: it uses a very low frequency oscillator to drive two LEDs. As can be seen in the circuit diagram, the LEDs are connected in anti-parallel. At every change in level there will only be a current flow for a short time, due to the large capacitor (C3) that is connected in series with D1 and D2. When C3 is charging D1 lights up and

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Anti Theft Security For Car Audios

This small circuit, based on popular CMOS NAND chip CD4093, can be effectively used for protecting your expensive car audio system against theft. When 12V DC from the car battery is applied to the gadget (as indicated by LED1) through switch S1, the circuit goes into standby mode. LED inside optocoupler IC1 is lit as its cathode terminal is grounded via the car audio (amplifier) body. As a result

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Engine Oil Seal Pressurizing Airflow Diagram

Engine Oil Seal Pressurizing Airflow Diagram

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70W Audio Power Amplifier Mono

DA1562Q si a 70 W high efficiency power amplifier with diagnostic facility. The TDA1562Q contains a mono class-H BTL output power amplifier.At low output power, up to 18 W, the device operates as a normal BTL amplifier.70W Audio Power Amplifier Mono Circuit Diagram When a larger output voltage swing is required, the internal supply voltage is lifted by means of the external electrolytic

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High Voltage White LED Driver

This high voltage white LED driver electronic circuit schematic is based on the NCP5021 IC manufactured by On Semiconductor . This NCP5021 high voltage white LED driver electronic circuit is designed with ambient light sensing feature . The NCP5021 white LED driver is capable of driving up to 8 LEDs in series for portable backlight applications. The built−in DC DC converter is based on a high

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Audio Power Level Meter Using LM3915

LM3915 monolithic integrated circuit can be designed a very simple audio power level meter that senses analog voltage levels and drives ten LEDs, LCDs or vacuum fluorescent displays, providing a logarithmic 3 dB/step analog display.One pin of the LM39145 changes the display from a bar graph to a moving dot display. LED current drive is regulated and programmable, eliminating the need for

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Car Reverse Horn

Most of people have there own vehicles.so I suppose this circuit will be very useful circuit for them.This circuit is a car reverse horn.If you can build your own circuit for your car I think that is great.Here I have used common Music generator IC UM 66.The out put voltage of UM66 is not enough to make a good car reverse horn so by using two transistors (BC148 and BEL187)I have increased

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230 Volts Flashing Lamps

Parts:

R1___________100K 1/4W Resistor
R2,R5__________1K 1/4W Resistors
R3,R6________470R 1/4W Resistors
R4____________12K 1/4W Resistor

C1__________1000µF 25V Electrolytic Capacitor

D1-D4_______1N4007 1000V 1A Diodes
D5__________P0102D 400V 800mA SCR

Q1___________BC327 45V 800mA PNP Transistor
Q2___________BC337 45V 800mA NPN Transistor

PL1__________Male Mains plug

SK1__________Female

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Build a Low Frequency Amplifier

Gain increases by decades as the binary input decreases from 1,1 to 0,0. Minimum gain is 1 and maximum gain is 1000. Since the switch is static in this type of amplifier the power dissipation of the switch will be less than a tenth of a milliwatt.  Low Frequency Amplifier Circuit Diagram

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Mbitnetwork Cable Wiring Pinout Wiringpinouts

Cat 5e Wiring Diagram.Cat 5 Ethernet Cable Standards Pin Out Assignments.Cat 5 Wiring Diagram.Plug And Socket Wiring Details T568astandard.Peak Electronic Design Limited Ethernet Wiring Diagrams Patch.How To Wire An Ethernet And Phone Jack Using A Single Cat5e Cable.How To Guide Creating Cat 5 Utp Ethernet Crossover Cable How To.100 Mbit Cat 5 Network Cable Wiring Pinout And Wiring

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A Simple Function Generator

Simple triangle-wave generators have a weakness in that the waveform of their output signal normally cannot be modified. The circuit presented here makes it possible to smoothly alter the waveform of a linearly rising and steeply trailing saw-tooth signal through a symmetrical triangle-wave to a slowly trailing, steeply rising linear sawtooth. The wanted waveform may be selected

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5V Regulated Solar Power Supply Circuit

This is a circuit of power supply that is produces a 5 VDC voltage. This circuit is rechargeable battery using solar panel. The solar panel charges the battery when sunlight is bright enough to produce a voltage above 1.9v. A diode is required between the panel and the battery as it leaks about 1mA from the battery when it is not illuminated. This is the figure of the circuit.How is the power

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Wiring Adapters Xenon Aluminum Resistors Xenon Lights

Closed Weekends And Bank Holidays.Vehicle Wiring Kit By Hoppy Part 40405.Supplied In 25 Foot 7 6 Metre Reels.Vwp Connectors Junction Boxes.Most Are A Two Piece Vehicle To Trailer Wiring Assembly For Those.Wiring Supplies 19 Products Folding Chairs 2 Products Garage.Wiring Adapters Hid Xenon Add On Aluminum Resistors Hid Xenon Lights.Vehicle Wiring Kit By Hoppy Part 41125.Vehicle

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Simple Alarm Circuit Keeps Wandering Children

The receiver circuit in Figure 1 sounds an audio alarm when the transmitter (Figure 2) moves beyond a designated perimeter. The transmitter, a voltage-controlled oscillator, operates at approximately 915 MHz in the unlicensed ISM (industrial/scientific/medical) band. It has a tuning voltage of 1.5V=3×R2/(R1+R2), which lets you easily adjust the frequency by varying the values of resistors R1

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9 Volt Power Supply Circuit Diagram Using IC 7809

DescriptionCircuit showing a 9 volt power supply . Here we have used a bridge rectifier and 7809 ic for making this circuit.Where the ic regulate the output to 9 v,1 A .This voltage every time constant.Are you interested ?Circuit diagram with Parts list.  Notes. If a current of 300 mA or above is required, fit a proper heat sink to the IC 7809.If 1A bridge is not available, make one using four

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Digital Clock with Timer and Solar Panel Regulator

This is a combination digital clock timer and solar panel charge controller used to maintain a deep cycle battery from a solar panel. The timer output is used to control a 12 volt load for a 32 minute time interval each day. Start time is set using 9 dip switches and ends 32 minutes later. The 32 minute duration is set by selecting the 5th bit (2^5 = 32) of a 4040 binary counter (pin 2). The

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FPF270X Over Current Protection

Using the FPF270X adjustable over-current protection IC can be designed a very simple adjustable current-limiting electronic project .FPF270X provide full protection to systems and loads from excess current conditions.Minimum current limit is adjustable from 0.4A to 2.0A.The input voltage range is 2.8V to 36V. Loads can be activated or deactivated with a low-voltage logic compatible ON pin.

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Using 555 Timer Voltage Controlled Switch

In this circuit the 555 timer is used in a novel way, as a voltage controlled switch.The old and omnipresent NE555 can be very good at something it was not meant for: driving relays or other loads up to 200 mA. The picture shows an example circuit: if the input level rises over 2/3 of the supply voltage - it will turn on the relay, and the relay will stay on until the level at the input

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Laptop Audio Amplifier IC LA 4440

This is the best IC LA 4440 Laptop Audio Amplifier circuit diagram, the audio output from the laptop’s built-in loudspeakers is low. A energy amplifier is needed to obtain a high volume. This is a simple circuit to amplify the laptop’s audio output. The circuit is made around energy amplifier IC LA 4440 (IC1) along with a couple of other components. LA4440 is really a dual funnel audio

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DS1669 Digital Control Volume

This DS1669 circuit could be used for replacing your manual volume control. DS1669 are digital rheostats or potentiometers and provide 64 possible uniform tap points over the resistive range and are available in standard versions of 10K, 50K, and 100K ohms.The DS1669 can be controlled by either a mechanical–type contact closure input or a digital source input such as a CPU. With DS1669 circuit we

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Simple Lighting Surge Protector Circuit

GDT’s are special type of gas filled tubes used for wide range of electronic/electrical circuits for providing protection against lightning and other power surges.  These tubes basically has two electrodes that are kept inside a gas filled closed envelope. In case of electronic applications, the container is mostly ceramic in nature. For high grade electrical applications military

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Maximite Stepper Motor Interface

This simple circuit and program listing allows the Maximite microcomputer (SILICON CHIP, March-May 2011) to control a stepper motor. It could be expanded to allow for the control of multiple motors, with four of the Maximite’s external I/O pins used to control each motor with identical driver circuits. A ULN2003 Darlington transistor array (IC1) switches current through the stepper

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USB Battery Charger Circuit Rise

In recent years, the use of USB or Universal Serial Bus as a reliable communications interface in plenty of electronic devices have increased due to its increased speed, size and flexibility. It fundamentally consists of terminals VBUS(+5V supply), GROUND, D+ and D-. As plenty of of the devices run on rechargeable battery, it is now the trend to design the charging circuit that makes use of the

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Simple Universal PIC Programmer

This simple programmer will accept any device thats supported by software (eg, IC-Prog 1.05 by Bonny Gijzen at www.ic-prog.com). The circuit is based in part on the ISP header described in the SILICON CHIP "PIC Testbed" project but also features an external programming voltage supply for laptops and for other situations where the voltage present on the RS232 port is insufficient. This

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LED flasher with Transistor circuits Diagram

These circuits only flash one or two LEDs. This is opposed to the light chaser circuits that can flash four or more. Of course, the simplest LED flasher is simply to use a flashing LED. The problem with that approach is you have no control over the flash rate, but it does have its use for eye catching displays for selling stuff. The circuits below give you that control, plus they can flash two

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High Performance Interruption Detector

The circuit presented here detects interruption in security systems. Its features include no false triggering by external factors (such as sun-light and rain), easy relative positioning of the sensors and alignment of the circuit, high sensitivity, and reliability. The circuit comprises three sections, namely, transmitter, receiver, and power supply. The transmitter generates

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Simple Police Siren

The simple Police Siren circuit uses two 555s to produce an up-down wailing sound. The first 555 is wired as a low-frequency oscillator to control the VOLTAGE CONTROL pin 5 of the second 555. The voltage shift on pin 5 causes the frequency of the second oscillator to rise and fall.

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Build A Split Supply Generator

Occasionally a designer needs a dual power supply to power a circuit that is operating with signals near or at ground but the only available supply is a single polarity, usually positive. Many excellent IC solutions are available but a suitable solution for many projects may be constructed from "junk box" parts. The simple circuit below will generate about 9 volts and -4 volts from a single

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TDA7275A DC Speed Controller

Using the TDA7275A linear integrated circuit manufactured in a minidip plastic package can be designed a very simple speed regulator electronic project that can be used for speed regulation of small DC motors .

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