Top Circuits Page 81
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This circuit was originally a type of power-delay control circuit, the delay time by the timing element Rl, C1 decision. But with the "watchdog" circuit,..
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The overhaul has the following features: online judge diodes, transistors is good or bad; test TTL logic level or a high impedance state; can output 37MHz, bar television signal 74MHz, 148MHz; the output 465kHz, 930kHz, 1395kHz AM signal. As illustrated, 555....
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Shown automatic power-protection circuit. This protection consists of step-down rectifier circuit, overvoltage and undervoltage detection circuit, delay switch control circuit...
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Circuit works: an integrated circuit lC (NE555) and R, RP, C3 substandard elements constituting around astable multivibrator, lC 3 feet square wave oscillation signal output from the current limiting resistor R2 is added to the TRIAC vs the control terminal,..
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555 bistable mode, stable and non-stable than single modes of application is relatively less. Bistable mode means that the circuit composed by R-S trigger mode. As shown by a m..
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555 limit when one group integrated electrical circuit load circuit is shown. It can limit the large load electric power. When the electricity load exceeds a set value, automat..
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555 precision temperature sensor with temperature frequency converting circuit diagram consisting of: ..
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Also known as digital amplifier Class-D amplifier with small size, high efficiency characteristics. Here are a circuit made easy with 555 Class D amplifier. It is the use of ci..
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Any time base circuit 555, the internal structure of the same circuit, the performance is the same. When there are many manufacturers base circuit 555 models, such as MC555, CA..
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As shown in Fig multi-channel temperature measurement circuit. The test circuit consists of a core consisting of 555 one-shot delay circuit. When the button i..
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As shown in Fig pulse-width detection circuit. The detection circuit by the differential circuit (R2, C2), amplifier BG1, single stabilizing circuit (555, R1,..
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As shown in Figure five uses tri-state logic pen audio circuit. The circuit mainly by the multivibrator, four-way switch CD4066 (IC1) circuit with some RC com..
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As shown circuit 555 is at the core of the flash circuit, when their normal work, the light emitting diode and VD2 will VDl alternating flashing circuit principle summarized as..
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As shown constituting the photoelectric conversion by the photoelectric sensors and switches 555, etc., issued by a music song to prompt IC2. Illuminance sensor parts are made ..
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As shown for the acoustic logic level probe circuit. The probe consists of a voltage comparator, multivibrator, piezoelectric ceramics HTD and other components. Wherein the com..
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As shown for the capacitor, the frequency detecting circuit transistor line. Can be converted by adjusting the preset switch K1 when this detector capacitance, frequency, trans..
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As shown for the electrical equipment overload and phase failure protection circuitry. The device consists of + 12V, + 5V DC power supply, AC transformer, voltage comparators, ..
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As shown for the level control circuit. The control circuit consists of step-down rectifier circuit, trigger circuit 555 (IC1, IC2), relay control circuit. Where the buck recti..
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As shown for the lights to remind the circuit. The circuit consists of monostable delay circuit, driving circuit, buzzer, light-emitting diodes and other components. Wherein th..
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As shown for the long timing circuitry simple. Press the switch AN start timing, tone PR can alter timing, the timing range from 3 minutes to 220 minutes. If the capacitance C ..
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As shown from the switch contacts, proportional to the speed pulse signal Vi, after the differential is added to IC (1/2 556) trigger side to make the single stabilizing circui..
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As shown in FIG ad decorative lamp control circuit. The controller consists of a pulse generator, a frequency divider, matrix circuit and thyristor control circuit.IC1 and R1, ..
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As shown in FIG circuit by the voltage - frequency converter and an amplitude modulator. Input voltage V1 by the operational amplifier A1 control FET 2N4222 internal resistance..
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As shown in FIG hypnosis massage is pocket-sized electronic timing circuit with two 555 timers to form, to meet the health needs of people to relax. Circuit consists of three p..
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As shown in FIG optical control circuitry for high-performance street. The circuit consists of a photoelectric conversion element LDR, comparator circuit IC1 (555), single stab..
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As shown in FIG touch sensor switch circuit diagram The circuit consists of step-down rectifier circuit 555 and flip-flops. When the hand touches the metal sheet A, sensor sign..
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As shown in FIG wind speed programmable circuit. The circuit consists of step-down rectifier circuit, a multi-stage cycle timing circuit, phase shift control circuit, thyristor..
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As shown in Fig ten temperature detection circuit circuit. The detection circuit by the temperature sensor, V/F converter circuit, an oscillator, circuit testing program contro..
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As shown in Figure 10 for the automatic conversion of wind speed control circuit. The circuit includes a clock signal generator IC1, counter IC2, decoder IC3, synchronous phase..
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As shown in Figure 555 constituting the DC capacitor tester. The tester from the pulse generator, single-shot, and the head indicating DC amplifier circuit. It measures NpF ~ 1..
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As shown in Figure 555 is a simple logic circuit test leads. Test pen 555 as the core, it will take a Schmitt trigger, the logic state of the test for digital circuit. 2,6 555 ..
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As shown in Figure 555 is the transistor characteristic curve tracer circuit depict transistor characteristics, to have two voltages, one step wave is applied b pole for genera..
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As shown in the circuit diagram of the device is looking for 555 cars, including a transmitter and a receiver in two parts. The transmitter 555 is a core component of the wave ..
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As shown, the 555 and the surrounding elements constitute a voltage - frequency conversion circuit. For determining the orientation of Earths magnetic field is a Hall-effect de..
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As shown, the apparatus includes cavers point detection circuit and triggering display circuit. The cavers instrument is a test probe grip in the hands of another probe touches..
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As shown, the call falls by the position sensing circuit trigger control circuit and SOS alarm circuit. For critically ill patients or for help with a disabled person falls. Pa..
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As shown, the circuit consists of a dual-core 556 and the light emitting tube. The left half of the IC (556 1/2) composition R1, R2, C1, etc. frequency of about 2Hz multivibrat..
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As shown, the circuit includes a clock pulse generator, and a pulse distribution circuit drives the display circuit. 555 and RP1, R1, R2, C1 composition astable multivibrator, ..
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As shown, the control terminal 5 feet and 555 threshold end 6 feet is actually two internal input voltage comparator I, as long as 6 feet voltage is higher than 5 feet 5mV, the..
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As shown, the controller includes a buck rectifier circuit 555 multivibrator, lantern control circuit for ~ 220V, 5W low power parallel control lights or 6 ~ 12V small bulb ser..
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As shown, the information apparatus comprises buck rectifier power supply (Vdd + 12V), the timing circuit, multivibrator, the output of the first amplifier and function. IC1 an..
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As shown, the proximity switch 555 as the core component monostable trigger circuit. 555 Trigger Pin 2 through the large resistance R2 connected to VDD, is waiting for a trigge..
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As shown, the three lights control circuit 555 as the core, consisting of cyclic trigger monostable delay circuit, the brightest of the SCR control the cycle turned, lights wer..
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As shown, this circuit is mainly used in a timely reminder dozing who can supervise and the number of records on duty were asleep. Figure d detection circuit is a minute signal..
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Circuit as shown by 555 and the light emitting tube. 555 and R1, R2, C1 composition astable multivibrator, the oscillation frequency f 1.44/(R1 + 2R2) C1, the vibration frequen..
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Circuit as shown by the 555 oscillator and amplifier driver stage composition. 555 and R1, R2, RP1, C1 and other components of a multi-harmonic oscillator whose frequency can b..
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Circuit as shown, consists of four light-controlled electronic switches, timing circuits, voice circuits, and audio circuits and other components. Congratulations for a birthda..
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Circuit shown in Figure generator consists of an oscillator, voltage follower, the amplitude of zero, zero shift circuit. Used as a self-balancing recorder running test signal ..
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Circuit shown in Figure, when used in multi-temperature test, switch the thermocouple corresponding channel. 555 brightest are at the core monostable delay circuit, such as Cli..
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This type of design can produce a very high amperage current for a faction a second that can used to do some useful work if properly harnessed. The switching device could be a rotating spark gap as used by Nikola Tesla or some high speed electronic device,....
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The Testatika design based on the Pidgeon/Wimshurst machine is of course only one type of electrostatic generator to build this system around. Since the early 1900s such power generators have come a long way in sophistication - and in power output - recently....
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The Unit is started by hand by revolving the two disks in opposite directions and continues to move without further input.
This device has only two moving parts namely the bearing races at the centre of the disk.
The disk are made of clear plastic upon....
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An electromagnetic generator without moving parts includes a permanent magnet and a magnetic core including first and second magnetic paths. A first input coil and a first output coil extend around portions of the first magnetic path, while a second input....
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Here he adapts an ordinary 40 amp car relay, converting it from having a “normally open” contact, to operating with a “normally closed” contact. It is not necessary for you to do this as automotive relays with “normally closed” contacts are readily available....
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I found one circuit diagram, on one russian site, freeenergylt dot narod2 dot ru/Aidas.
Question is, diagram contains something pulse generator, for this circuit diagram need PCGU1000 equipment, for functioning the coils?..
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The power is all in the timed switching process. There are two main principles I use of switching the radiant energy the John Bedini way. First, the SG/SSG, Icehouse unidirectional circuit or John Bedini Monopole with the School Girl Circuit (SG)....
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If you decide to use 2 circuits, i just connect their outputs together...neg output from first circuit to neg output of second circuit & pos output from first circuit to pos output of second circuit.
And take readings from same place....from where you....
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This simple circuit is started running by connecting a twelve volt battery across the terminals, causing the large diameter Light-Emitting Diode to light up. When the battery is removed, the LED stays lit up because the circuit has become self-powering.....
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The timing must be exact to get those high voltage spikes. I used a tiny magnet on the rotor, that triggered a reedswitch allowing the relay to pulse the energy from the recovery coil to the primary battery. In the same time the rest of the circuit is....
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A simple two-transistor inverter circuit has been built for this experiment. The transformer shown in Fig. 1 is the inverter transformer. The inverter output voltage is in the form of pulses with an estimated peak value of about 700V. When a Fluorescent lamp....
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There are two ways to overcome the effect of gravity using electromagnetic forces:
1. Using a rotating magnetic field and a radial current flow. The force is in the direction of vB q , so out of the page for the configuration shown in Fig. 1. Electron....
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This type of travel may be possible if two space points can be connected by a vortex channel in aether. The channel allows continuity of matter, energy, life etc by establishing a connection between two distant points. The vortex channel can be created by a....
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I like to post some thoughts on some of the functions of the Great Pyramid of Egypt. It's been claimed that the Great Pyramid might be a Power Plant, a Tomb, a Transmitter/Receiver to talk with some other Worlds, or a message from Atlanteans to future....
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When the magnet approaches, N flux inside the bifilar coil increases. An opposing flux is produced by the coil and an EMF is generated across L1 and L2. The EMF across L1 applies + voltage to B-E terminals of Q1 and turns it ON. Q1 saturates rapidly and a....
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Avramenko is a Russian scientist and invented the plug shown in Fig. 1 to transmit electrical energy over a single wire. It’s a simple circuit consisting of two diodes, one capacitor, and a flash tube. The high-voltage (HV) terminal is connected to the HV....
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In the absence of any other force, a mass m experiences a force mg due to Earth’s gravitational field. Since matter is composed of atoms or molecules, it is possible to generate a polarizing electrostatic force between + and – matter. Let’s refer to these....
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This cell phone jammer is not applicable for use in Europe, Middle East, nor Asia.
The GSM jammer circuit could block mobile phone signals which works on GSM1900 band, also called DCS. For more cell phone jammers check the related posts...
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This Remote control Jammer device it’s useful when we need to block someone to use the remote control (children that change frequently the channels at tv). This remote control jammer it’s very simply and it use two infrared Leds which continuously transmit....
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Here is the circuit diagram of simple but highly effective TV remote jammer circuit. Most of the TV remotes have 38KHz operating frequency. A flood of IR beams in the same frequency can easily confuse the TV receiver and this is the operating principle of....
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Hackers listen up. Everyone understands and enjoys the utilitarian benefits that GPS has brought to our lives but what if it didn’t work any more? I suppose you could build some sort of surface to space missile robot that would systematically seek and....
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Emits a carrier that sweeps the 925-960 MHz cellular tower transmitter band (handset receive band)...
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These photos were made in the years 1956 and 1957. On photo nr. 3, on the right, at the bottom, is the GMD. The work that was done at the objekt was of course top secret. It was strictly forbidden to talk to any acquaintance or relative about the work.....
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Audio Jammer Noise generator for detector audio circuit..
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RF Power Amplifier 1 Watt. Jams Cellular Downlink Band: 800-950 MHz...
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Just point this small device at the TV and the remote gets jammed . The circuit is self explanatory . 555 is wired as an astable multivibrator for a frequency of nearly 38 kHz. This is the frequency at which most of the modern TVs receive the IR beam . The....
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The IR Jammer is a fun project that provides a bit of safe, non-destructive fun. The Infrared Remote Control Jammer allows you to render all IR remote controls inoperative! The microcontroller in this design allows for all 6 of the main IR frequencies to be....
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The Tri-Waveform Generator can be used for a number of different uses. The one that I use it for is a signal generator to test circuits. The frequency range is 20 to 20khz. and can be adjusted by R1. The duty cycle or the time that the waveform is high and....
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This fucntion gernerator IC is specified to work to 20 MHz. So far, this unit works nicely to 50KHz. Since I seldom need signals higher than that, it has taken up a happy home on my workbench and further development is iffy at best. There are two basic....
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The excess small forward current flow in a tunnel or Esaki diode is a manifestation of quantum mechanical tunneling...
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This is a useful instrument for works hops. The standard of the produced frequencies is 10 to 1. The basic frequency is produced by a crystal with high accuracy. The circuit is consisted by the oscillator, around the crystal and the frequency divider, which....
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This frequency doubler using a single 4069 hex inverter IC, a frequency doubler can be constructed to give an output pulse train whose frequency is twice that of a squarewave input signal. The signal is applied to the input of N1. It should be a squarewave....
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This frequency doubler uses one CMOS quad, two input NAND gate package type 4011. The frequency doubler proper consists of an inverter IC1B, two differentiating networks R1/C1, R2/C2 and NAND gate IC1A, IC1C and IC1D function as input and output buffers. In....
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This is a classic divider of frequency via two. It is achieved with a classic circuit T-flipFlop, round IC1 [ 4011 ]. In the circuit, the frequency of network, after are limit the negative half-s period of sine wave and transform in square wave, are divided....
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Here exist a small collection from three generators, what using crystal for basic production of oscillations. Each generator uses different topology of circuit for the production of oscillations.
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The CD4060 is a CMOS 14-stage binary counter with an internal oscillator on chip. The oscillator is controlled by the resistors and capacitor tied to the timing pins, 9-11. This oscillator runs the binary counter, and the various outputs count at the....
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A 7 MHz oscillator with a variable crystal oscillator (VXO) operates very stably, but it allows only a small frequency variation (approx. 5 kHz). In contrast, a VFO with an LC resonant circuit can be tuned over a range of several hundred kHz, but its....
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In order to generate a single note you may try these simple circuits. With only three components you may implement some basic buzzers. You need a telephone earpiece for the first circuit. Any old telephone set has got one of those magnetic earpiece that is....
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Silicon controlled rectifiers (SCR) can easily oscillate if there is an inductor (a speaker coil in this case) which gives just enough extra voltage to completely switch off the sustain current. In this way a new cycle may start and oscillations set in. It....
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These two circuits are interesting from an academic point of view. Their practical implementation is rather critical and it is not easy to get steady operation. Circuit (a) requires a "cooked" zener: connect it first to a constant current generator, then....
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The small 8-pin PIC12C508 is pre-programmed to generate our 38KHz carrier frequency by simply pulsing I/O-pin GP1 (shown above). The PIC will generate either 38KHz or 40KHz, depending on the state of GP3 when power is first applied. If you connect GP3 to....
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Sawtooth wave generators using opamp are very common. But the disadvantage is that it requires a bipolar power supply. A sawtooth wave generator can be built using a simple 555 timer IC and a transistor as shown in the circuit diagram. The working of the....
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The oscillator circuit (see Figure 1) involves two unity gain phase shift stages, A1 and A2, in tandem and a gain stage, A3, with back to back diodes and resistor network providing non-linear negative feedback. At a particular frequency (determined by RT and....
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This circuit consists of a CMOS square wave oscillator on a frequency of approximately 1 kHz. The RC filter, which has a roll-off frequency of 500 Hz, filters the harmonics, providing a sine-wave output.
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This is a handy companion for a digital voltmeter. Its allowed me to do a lot of things I used to use my oscilloscope for, and in addition it measures voltages to much greater precision.Using an LM324 quad op amp, this peak detector provides 2% measurement....
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This basically the frequency meter section of the frequency meter/pulse generator based on the AT90S2313 described elsewhere on this site, combined with the 100 MHz RF interface described in the page about the RS-232 to 100 MHz RF desktop channel adapter.....
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This instrument requires two precision components: A precision capacitor and a precision inductor. You only need to start with one precision component, either the reference capacitor or the reference inductor, and using this meter, you can select or adjust....
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If this picture (above) looks a lot like the Pretty Good LC Meter also on this web site, that's because its the same meter, but with some significant improvements. At this point, its a good idea to read the Pretty Good LC Meter page because the rest of this....
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The circuit's operating principle is that if you make a pulse width proportioal to inductance, and keep the pulse frequency and amplitude constant, and then pass the pulse through a low pass filter so that only the average voltage comes out, the resulting DC....
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This is design for a frequency meter based on AVR microcontrollers. Maximum input frequency is specified to be 30 MHz in the multi-chip configuration, and in single-chip configuration, there are both 5 MHz and 10 Mhz versions operating with 10 and 20 MHz....
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These parameters are expected with an approximately 50% square wave up to frequencies of seveal MHz, and symmetric sine waves at higher frequencies. The primary limitation is based on the maximum clocking rate specification for the MM74HC6040 ripple counter....
This circuit was originally a type of power-delay control circuit, the delay time by the timing element Rl, C1 decision. But with the "watchdog" circuit,..
The overhaul has the following features: online judge diodes, transistors is good or bad; test TTL logic level or a high impedance state; can output 37MHz, bar television signal 74MHz, 148MHz; the output 465kHz, 930kHz, 1395kHz AM signal. As illustrated, 555....
Shown automatic power-protection circuit. This protection consists of step-down rectifier circuit, overvoltage and undervoltage detection circuit, delay switch control circuit...
Circuit works: an integrated circuit lC (NE555) and R, RP, C3 substandard elements constituting around astable multivibrator, lC 3 feet square wave oscillation signal output from the current limiting resistor R2 is added to the TRIAC vs the control terminal,..
555 bistable mode, stable and non-stable than single modes of application is relatively less. Bistable mode means that the circuit composed by R-S trigger mode. As shown by a m..
555 limit when one group integrated electrical circuit load circuit is shown. It can limit the large load electric power. When the electricity load exceeds a set value, automat..
555 precision temperature sensor with temperature frequency converting circuit diagram consisting of: ..
Also known as digital amplifier Class-D amplifier with small size, high efficiency characteristics. Here are a circuit made easy with 555 Class D amplifier. It is the use of ci..
Any time base circuit 555, the internal structure of the same circuit, the performance is the same. When there are many manufacturers base circuit 555 models, such as MC555, CA..
As shown in Fig multi-channel temperature measurement circuit. The test circuit consists of a core consisting of 555 one-shot delay circuit. When the button i..
As shown in Fig pulse-width detection circuit. The detection circuit by the differential circuit (R2, C2), amplifier BG1, single stabilizing circuit (555, R1,..
As shown in Figure five uses tri-state logic pen audio circuit. The circuit mainly by the multivibrator, four-way switch CD4066 (IC1) circuit with some RC com..
As shown circuit 555 is at the core of the flash circuit, when their normal work, the light emitting diode and VD2 will VDl alternating flashing circuit principle summarized as..
As shown constituting the photoelectric conversion by the photoelectric sensors and switches 555, etc., issued by a music song to prompt IC2. Illuminance sensor parts are made ..
As shown for the acoustic logic level probe circuit. The probe consists of a voltage comparator, multivibrator, piezoelectric ceramics HTD and other components. Wherein the com..
As shown for the capacitor, the frequency detecting circuit transistor line. Can be converted by adjusting the preset switch K1 when this detector capacitance, frequency, trans..
As shown for the electrical equipment overload and phase failure protection circuitry. The device consists of + 12V, + 5V DC power supply, AC transformer, voltage comparators, ..
As shown for the level control circuit. The control circuit consists of step-down rectifier circuit, trigger circuit 555 (IC1, IC2), relay control circuit. Where the buck recti..
As shown for the lights to remind the circuit. The circuit consists of monostable delay circuit, driving circuit, buzzer, light-emitting diodes and other components. Wherein th..
As shown for the long timing circuitry simple. Press the switch AN start timing, tone PR can alter timing, the timing range from 3 minutes to 220 minutes. If the capacitance C ..
As shown from the switch contacts, proportional to the speed pulse signal Vi, after the differential is added to IC (1/2 556) trigger side to make the single stabilizing circui..
As shown in FIG ad decorative lamp control circuit. The controller consists of a pulse generator, a frequency divider, matrix circuit and thyristor control circuit.IC1 and R1, ..
As shown in FIG circuit by the voltage - frequency converter and an amplitude modulator. Input voltage V1 by the operational amplifier A1 control FET 2N4222 internal resistance..
As shown in FIG hypnosis massage is pocket-sized electronic timing circuit with two 555 timers to form, to meet the health needs of people to relax. Circuit consists of three p..
As shown in FIG optical control circuitry for high-performance street. The circuit consists of a photoelectric conversion element LDR, comparator circuit IC1 (555), single stab..
As shown in FIG touch sensor switch circuit diagram The circuit consists of step-down rectifier circuit 555 and flip-flops. When the hand touches the metal sheet A, sensor sign..
As shown in FIG wind speed programmable circuit. The circuit consists of step-down rectifier circuit, a multi-stage cycle timing circuit, phase shift control circuit, thyristor..
As shown in Fig ten temperature detection circuit circuit. The detection circuit by the temperature sensor, V/F converter circuit, an oscillator, circuit testing program contro..
As shown in Figure 10 for the automatic conversion of wind speed control circuit. The circuit includes a clock signal generator IC1, counter IC2, decoder IC3, synchronous phase..
As shown in Figure 555 constituting the DC capacitor tester. The tester from the pulse generator, single-shot, and the head indicating DC amplifier circuit. It measures NpF ~ 1..
As shown in Figure 555 is a simple logic circuit test leads. Test pen 555 as the core, it will take a Schmitt trigger, the logic state of the test for digital circuit. 2,6 555 ..
As shown in Figure 555 is the transistor characteristic curve tracer circuit depict transistor characteristics, to have two voltages, one step wave is applied b pole for genera..
As shown in the circuit diagram of the device is looking for 555 cars, including a transmitter and a receiver in two parts. The transmitter 555 is a core component of the wave ..
As shown, the 555 and the surrounding elements constitute a voltage - frequency conversion circuit. For determining the orientation of Earths magnetic field is a Hall-effect de..
As shown, the apparatus includes cavers point detection circuit and triggering display circuit. The cavers instrument is a test probe grip in the hands of another probe touches..
As shown, the call falls by the position sensing circuit trigger control circuit and SOS alarm circuit. For critically ill patients or for help with a disabled person falls. Pa..
As shown, the circuit consists of a dual-core 556 and the light emitting tube. The left half of the IC (556 1/2) composition R1, R2, C1, etc. frequency of about 2Hz multivibrat..
As shown, the circuit includes a clock pulse generator, and a pulse distribution circuit drives the display circuit. 555 and RP1, R1, R2, C1 composition astable multivibrator, ..
As shown, the control terminal 5 feet and 555 threshold end 6 feet is actually two internal input voltage comparator I, as long as 6 feet voltage is higher than 5 feet 5mV, the..
As shown, the controller includes a buck rectifier circuit 555 multivibrator, lantern control circuit for ~ 220V, 5W low power parallel control lights or 6 ~ 12V small bulb ser..
As shown, the information apparatus comprises buck rectifier power supply (Vdd + 12V), the timing circuit, multivibrator, the output of the first amplifier and function. IC1 an..
As shown, the proximity switch 555 as the core component monostable trigger circuit. 555 Trigger Pin 2 through the large resistance R2 connected to VDD, is waiting for a trigge..
As shown, the three lights control circuit 555 as the core, consisting of cyclic trigger monostable delay circuit, the brightest of the SCR control the cycle turned, lights wer..
As shown, this circuit is mainly used in a timely reminder dozing who can supervise and the number of records on duty were asleep. Figure d detection circuit is a minute signal..
Circuit as shown by 555 and the light emitting tube. 555 and R1, R2, C1 composition astable multivibrator, the oscillation frequency f 1.44/(R1 + 2R2) C1, the vibration frequen..
Circuit as shown by the 555 oscillator and amplifier driver stage composition. 555 and R1, R2, RP1, C1 and other components of a multi-harmonic oscillator whose frequency can b..
Circuit as shown, consists of four light-controlled electronic switches, timing circuits, voice circuits, and audio circuits and other components. Congratulations for a birthda..
Circuit shown in Figure generator consists of an oscillator, voltage follower, the amplitude of zero, zero shift circuit. Used as a self-balancing recorder running test signal ..
Circuit shown in Figure, when used in multi-temperature test, switch the thermocouple corresponding channel. 555 brightest are at the core monostable delay circuit, such as Cli..
This type of design can produce a very high amperage current for a faction a second that can used to do some useful work if properly harnessed. The switching device could be a rotating spark gap as used by Nikola Tesla or some high speed electronic device,....
The Testatika design based on the Pidgeon/Wimshurst machine is of course only one type of electrostatic generator to build this system around. Since the early 1900s such power generators have come a long way in sophistication - and in power output - recently....
The Unit is started by hand by revolving the two disks in opposite directions and continues to move without further input. This device has only two moving parts namely the bearing races at the centre of the disk. The disk are made of clear plastic upon....
An electromagnetic generator without moving parts includes a permanent magnet and a magnetic core including first and second magnetic paths. A first input coil and a first output coil extend around portions of the first magnetic path, while a second input....
Here he adapts an ordinary 40 amp car relay, converting it from having a “normally open” contact, to operating with a “normally closed” contact. It is not necessary for you to do this as automotive relays with “normally closed” contacts are readily available....
I found one circuit diagram, on one russian site, freeenergylt dot narod2 dot ru/Aidas. Question is, diagram contains something pulse generator, for this circuit diagram need PCGU1000 equipment, for functioning the coils?..
The power is all in the timed switching process. There are two main principles I use of switching the radiant energy the John Bedini way. First, the SG/SSG, Icehouse unidirectional circuit or John Bedini Monopole with the School Girl Circuit (SG)....
If you decide to use 2 circuits, i just connect their outputs together...neg output from first circuit to neg output of second circuit & pos output from first circuit to pos output of second circuit. And take readings from same place....from where you....
This simple circuit is started running by connecting a twelve volt battery across the terminals, causing the large diameter Light-Emitting Diode to light up. When the battery is removed, the LED stays lit up because the circuit has become self-powering.....
The timing must be exact to get those high voltage spikes. I used a tiny magnet on the rotor, that triggered a reedswitch allowing the relay to pulse the energy from the recovery coil to the primary battery. In the same time the rest of the circuit is....
A simple two-transistor inverter circuit has been built for this experiment. The transformer shown in Fig. 1 is the inverter transformer. The inverter output voltage is in the form of pulses with an estimated peak value of about 700V. When a Fluorescent lamp....
There are two ways to overcome the effect of gravity using electromagnetic forces: 1. Using a rotating magnetic field and a radial current flow. The force is in the direction of vB q , so out of the page for the configuration shown in Fig. 1. Electron....
This type of travel may be possible if two space points can be connected by a vortex channel in aether. The channel allows continuity of matter, energy, life etc by establishing a connection between two distant points. The vortex channel can be created by a....
I like to post some thoughts on some of the functions of the Great Pyramid of Egypt. It's been claimed that the Great Pyramid might be a Power Plant, a Tomb, a Transmitter/Receiver to talk with some other Worlds, or a message from Atlanteans to future....
When the magnet approaches, N flux inside the bifilar coil increases. An opposing flux is produced by the coil and an EMF is generated across L1 and L2. The EMF across L1 applies + voltage to B-E terminals of Q1 and turns it ON. Q1 saturates rapidly and a....
Avramenko is a Russian scientist and invented the plug shown in Fig. 1 to transmit electrical energy over a single wire. It’s a simple circuit consisting of two diodes, one capacitor, and a flash tube. The high-voltage (HV) terminal is connected to the HV....
In the absence of any other force, a mass m experiences a force mg due to Earth’s gravitational field. Since matter is composed of atoms or molecules, it is possible to generate a polarizing electrostatic force between + and – matter. Let’s refer to these....
This cell phone jammer is not applicable for use in Europe, Middle East, nor Asia. The GSM jammer circuit could block mobile phone signals which works on GSM1900 band, also called DCS. For more cell phone jammers check the related posts...
This Remote control Jammer device it’s useful when we need to block someone to use the remote control (children that change frequently the channels at tv). This remote control jammer it’s very simply and it use two infrared Leds which continuously transmit....
Here is the circuit diagram of simple but highly effective TV remote jammer circuit. Most of the TV remotes have 38KHz operating frequency. A flood of IR beams in the same frequency can easily confuse the TV receiver and this is the operating principle of....
Hackers listen up. Everyone understands and enjoys the utilitarian benefits that GPS has brought to our lives but what if it didn’t work any more? I suppose you could build some sort of surface to space missile robot that would systematically seek and....
Emits a carrier that sweeps the 925-960 MHz cellular tower transmitter band (handset receive band)...
These photos were made in the years 1956 and 1957. On photo nr. 3, on the right, at the bottom, is the GMD. The work that was done at the objekt was of course top secret. It was strictly forbidden to talk to any acquaintance or relative about the work.....
RF Power Amplifier 1 Watt. Jams Cellular Downlink Band: 800-950 MHz...
Just point this small device at the TV and the remote gets jammed . The circuit is self explanatory . 555 is wired as an astable multivibrator for a frequency of nearly 38 kHz. This is the frequency at which most of the modern TVs receive the IR beam . The....
The IR Jammer is a fun project that provides a bit of safe, non-destructive fun. The Infrared Remote Control Jammer allows you to render all IR remote controls inoperative! The microcontroller in this design allows for all 6 of the main IR frequencies to be....
The Tri-Waveform Generator can be used for a number of different uses. The one that I use it for is a signal generator to test circuits. The frequency range is 20 to 20khz. and can be adjusted by R1. The duty cycle or the time that the waveform is high and....
This fucntion gernerator IC is specified to work to 20 MHz. So far, this unit works nicely to 50KHz. Since I seldom need signals higher than that, it has taken up a happy home on my workbench and further development is iffy at best. There are two basic....
The excess small forward current flow in a tunnel or Esaki diode is a manifestation of quantum mechanical tunneling...
This is a useful instrument for works hops. The standard of the produced frequencies is 10 to 1. The basic frequency is produced by a crystal with high accuracy. The circuit is consisted by the oscillator, around the crystal and the frequency divider, which....
This frequency doubler using a single 4069 hex inverter IC, a frequency doubler can be constructed to give an output pulse train whose frequency is twice that of a squarewave input signal. The signal is applied to the input of N1. It should be a squarewave....
This frequency doubler uses one CMOS quad, two input NAND gate package type 4011. The frequency doubler proper consists of an inverter IC1B, two differentiating networks R1/C1, R2/C2 and NAND gate IC1A, IC1C and IC1D function as input and output buffers. In....
This is a classic divider of frequency via two. It is achieved with a classic circuit T-flipFlop, round IC1 [ 4011 ]. In the circuit, the frequency of network, after are limit the negative half-s period of sine wave and transform in square wave, are divided....
Here exist a small collection from three generators, what using crystal for basic production of oscillations. Each generator uses different topology of circuit for the production of oscillations. ..
The CD4060 is a CMOS 14-stage binary counter with an internal oscillator on chip. The oscillator is controlled by the resistors and capacitor tied to the timing pins, 9-11. This oscillator runs the binary counter, and the various outputs count at the....
A 7 MHz oscillator with a variable crystal oscillator (VXO) operates very stably, but it allows only a small frequency variation (approx. 5 kHz). In contrast, a VFO with an LC resonant circuit can be tuned over a range of several hundred kHz, but its....
In order to generate a single note you may try these simple circuits. With only three components you may implement some basic buzzers. You need a telephone earpiece for the first circuit. Any old telephone set has got one of those magnetic earpiece that is....
Silicon controlled rectifiers (SCR) can easily oscillate if there is an inductor (a speaker coil in this case) which gives just enough extra voltage to completely switch off the sustain current. In this way a new cycle may start and oscillations set in. It....
These two circuits are interesting from an academic point of view. Their practical implementation is rather critical and it is not easy to get steady operation. Circuit (a) requires a "cooked" zener: connect it first to a constant current generator, then....
The small 8-pin PIC12C508 is pre-programmed to generate our 38KHz carrier frequency by simply pulsing I/O-pin GP1 (shown above). The PIC will generate either 38KHz or 40KHz, depending on the state of GP3 when power is first applied. If you connect GP3 to....
Sawtooth wave generators using opamp are very common. But the disadvantage is that it requires a bipolar power supply. A sawtooth wave generator can be built using a simple 555 timer IC and a transistor as shown in the circuit diagram. The working of the....
The oscillator circuit (see Figure 1) involves two unity gain phase shift stages, A1 and A2, in tandem and a gain stage, A3, with back to back diodes and resistor network providing non-linear negative feedback. At a particular frequency (determined by RT and....
This circuit consists of a CMOS square wave oscillator on a frequency of approximately 1 kHz. The RC filter, which has a roll-off frequency of 500 Hz, filters the harmonics, providing a sine-wave output. ..
This is a handy companion for a digital voltmeter. Its allowed me to do a lot of things I used to use my oscilloscope for, and in addition it measures voltages to much greater precision.Using an LM324 quad op amp, this peak detector provides 2% measurement....
This basically the frequency meter section of the frequency meter/pulse generator based on the AT90S2313 described elsewhere on this site, combined with the 100 MHz RF interface described in the page about the RS-232 to 100 MHz RF desktop channel adapter.....
This instrument requires two precision components: A precision capacitor and a precision inductor. You only need to start with one precision component, either the reference capacitor or the reference inductor, and using this meter, you can select or adjust....
If this picture (above) looks a lot like the Pretty Good LC Meter also on this web site, that's because its the same meter, but with some significant improvements. At this point, its a good idea to read the Pretty Good LC Meter page because the rest of this....
The circuit's operating principle is that if you make a pulse width proportioal to inductance, and keep the pulse frequency and amplitude constant, and then pass the pulse through a low pass filter so that only the average voltage comes out, the resulting DC....
This is design for a frequency meter based on AVR microcontrollers. Maximum input frequency is specified to be 30 MHz in the multi-chip configuration, and in single-chip configuration, there are both 5 MHz and 10 Mhz versions operating with 10 and 20 MHz....
These parameters are expected with an approximately 50% square wave up to frequencies of seveal MHz, and symmetric sine waves at higher frequencies. The primary limitation is based on the maximum clocking rate specification for the MM74HC6040 ripple counter....