Varius Circuits
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Early schematic of a Colpitts circuit, using a vacuum tube, redrawn from the patent publication. A Colpitts oscillator, invented in 1920 by American engineer Edwin H. Colpitts, is one of a number of designs for electron.... -
This plugin uses a quartz oscillator which uses a crystal (X1), amongst other components to give a 32, 768Hz (32, 768=215) output. This is input to a 4020 14-Stage Ripple Counter, which divides this signal down by 214 to a 2Hz signal. This 2Hz signal is then.... -
In this version of the oscillator, Rb is a small incandescent lamp. Usually R1 = R2 = R and C1 = C2 = C. In normal operation, Rb self heats to the point where its resistance is Rf/2. A Wien bridge oscillator is a type of electronic oscillator that generates.... -
This oscillator requires no biasing components. Only an inductor and various matching or tuning capacitors are required to set the operating frequency. The active element is the 74HCU04 hex inverter. Only one of the six inverters is required for the.... -
This is the 555 Sawtooth Oscillator circuit diagram with the detailed explanation of its working principles. The electronic circuit simulator helps you to design the 555 Sawtooth Oscillator circuit and to simulate it online for better understanding.... -
This is a circuit that is known as wien bridge oscillator circuit. The circuit has positive and negative feedback loop. This circuit is work with control by op amp. This is the figure of the circuit. The circuit oscillates at a frequency determined by the RC.... -
This circuit would be mounted in a small plastic or preferably metal box, with a 9V battery, level control, a male XLR connector (same as on a microphone) and a switch. Current drain is low, since the circuit only uses one dual op amp. There is no need for a.... -
Design a Colpitts Oscillator in a common collector configuration using a single BJT. Provide base current to get the transistor operating properly, and you can do this using a potential divider (between Vcc and gnd): use resistor values as high as possible.... -
The Hartley Oscillator is characterised by an LC circuit in its collector. The base of the transistor is held steady and a small amount of signal is taken from a tapping on the inductor and fed to the emitter to keep the transistor in oscillation... -
The simplest method of detecting metal is by beat frequency oscillator. The circuit basically consists of two balanced oscillator. One acts as the detector element, the other provides the reference signal. This oscillator frequency reference is set to fix.... -
This scheme is sine wave oscillator, with frequency from 5 Hertz up to 5 KHZ. Capasitor C1, C2, C3 altogether valuable 100pF, yielded frequency 5 KHZ. To get other frequency magnitude of we ready to change value at C1, C2 and C3, like under this... -
This scheme applies amplifier OpAmp LM301 to awaken square wave that is simple. LM301 applies power allowance 3 V - 36 V, with highest frequency 325 kHzs. Oscillation frequency given in equation. where f is Hertz, R in Ohm, C in Farad. Active Pressure C1.... -
Bedini student, Rick Friedrich, presents his set-up and results, claiming that in the process of moving charge from one battery to another through the motor system, that this system can achieve a net energy gain, harvesting energy from the environment.... -
Here s a design circuit for linear opto coupler circuit that is based on MOC5010 and can be used to isolate a circuit from main grid, audio interface, in medical electronics and many other applications. Here s th .... -
This is the first oscillator I ever built. I remember looking at books and magazines, schematics on the net, etc. They wereall either colpitt or hartley oscillators. Generally speaking while they`re simple enough, they require the use of properinductors.... -
Nowadays, it is no longer necessary to use discrete components to build oscillators. Instead, many manufacturers provide ready-made voltage-controlled oscillator (VCO) ICs that need only a few frequency-determining external components. One example is the RF.... -
Although a simple crystal oscillator may be built from one comparator of an LT1720/LT1721, this will suffer from a number of inherent shortcomings and design problems. Although the LT1720/LT1721 will give the correct logic output when one input is outside.... -
This 860 MHz Phase Locked Loop (PLL) oscillator circuit is for 1200 MHz transverter`s local oscillator with 435MHz rigs. The oscillator circuit uses PLL synthesizer IC`s of Toshiba for PLL circuit. TC9122P is easy to use preset counter for determining.... -
This MOT`s LSI is very suitable for designing ham rigs` VFO, which has 4 digit BCD preset counters from 3 to 3999. And also there is standard Xtal frequency oscillator and preset dividers. This LSI`s input nodes are pull down in the LSI. You should supply 5V.... -
Circuit Colpitts Oscillator schematics Circuit Electronics, Colpitts oscillator is very similar to the shunt-fed Hartley oscillator. The principal difference is in the tank circuit. In the Colpitts oscillator, two capacitors are used as replacement coils are.... -
Wien bridge oscillator is an audio frequency sine wave oscillator of high stability and simplicity. Before that let us see what is oscillator An oscillator is a circuit that produces periodic electric signals such as sine wave or square wave. The application.... -
In this section we would like to introduce you a transistor oscillator circuit, called as RC Phase shift Oscillator. First of all we need to know what is an oscillator. An oscillator is an electronic circuit which acts as a sine wave generator. The only.... -
As discussed in previous blog posts, pin 5 terminal is voltage control terminal and its function is to control the threshold and trigger levels. Normally, the control voltage is +2/3VCC because of the internal voltage divider. However, an external voltage.... -
ICL8038 based audio oscillator circuit. Simultaneous sine, triangle and square wave forms. Dual supply operation. Cover full audio frequency range....
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This project fits more for custom made battery casing that can have more space to hide things inside. This switch with few alterations can be used for any other project as well but is designed based on e-bike needs! This project use a clever functionality of.... -
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is.... -
Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to.... -
Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This.... -
The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the.... -
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound,.... -
In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the.... -
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power.... -
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower.....
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