Top Circuits Page 140
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TDA 2030 is produced by SGS Ates and is a complete audio amplifier. Class AB amplifier to deliver final cand 14 watts into 4 ohms, a source of +-14V power. Connecting two TDA2030 through cheap power transistors that can create an amplifier that can deliver a....
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-
The following experiment shows how interestingly Mr. Steven could draw free energy from air using his home-built sec exciter coil tower, he used it to a feed a small LM317 power supply unit and made it work successfully. Read more. "When i hand wind my coils....
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-
You can control any electrical gadget from any part of the world through your cell phone, that too without spending a penny for the individual commands. Whether it`s you vehicle, your basement door, your mansion gate or simply the air conditioner of your....
-
The following article discusses a few very simple intrusion detector circuits, or simply burglar alarm circuits. The presented designs are simple yet extremely effective with the functions. The triggering stage may consist of a voltage/current amplifier....
-
The following multi-function water level controller circuit post is based on the suggestions expressed by Mr. Usman. Lets learn more about the requested modifications and the circuit details. 1) To protect the motor from potential overheating (or as a safety....
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This circuit is a Mosfet-based linear voltage regulator with a voltage drop of as low as 60mV at 1A. The circuit uses a 15V-0-15V transformer and employs an IRF540 N-channel Mosfet (Q1) to deliver the regulated 12V output. The gate drive voltage required for....
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-
It`s always a bit difficult to measure the current in the positive lead of a power supply, such as a battery charger. Fortunately, special ICs have been developed for this purpose in the last few years, such as the Burr-Brown INA138 and INA168. These ICs....
-
-
-
The equalizer presented in this article is suitable for use with hi-fi installations, public-address systems. mixers and electronic musical instruments. The relay contacts at the inputs and outputs, in conjunction with S2, enable the desired channel to be....
-
This is a design circuit for stereo encoder. This circuit is using BH1417 Stereo Encoder. This circuit using with pre-emphasis, limiter so that the music can be transmitted at the same audio level, low pass filter that blocks any audio signals above 15 KHz....
-
Make LED lighting that is powered directly from the AC mains (120-Volt AC), due to the lack of having any inexpensive AND safe enclosures for the circuitry. While I was gathering some old failed CFLs one day with the intention to recycle them, I realized....
-
Mother Bug is a simple, interactive electronic message board. disguised as a "bug. " Text messages are pre-programmed into the memory of the device`s microcontroller. When triggered, the microcontroller uses a 5 x 7 LED matrix display to print out the....
-
The controller is entirely hardware based, and provides the typical sequencing for a standard 3-light traffic signal. I built this traffic light controller / sequencer when I was firstlearning electronics, and it is what I would consider a crude and ugly....
-
The USB standard restricts the current consumption of all USB devices to either 100mA or 500mA depending on the specifics of the USB hub and/or host controller (i. e. computer) that is supplying the power. Ideally, no USB device should ever pull more than....
-
How do you make an LED turn on when it gets dark. You might call it the "nightlight problem, " but the same sort of question comes up in a lot of familiar situations- emergency lights, street lights, silly computer keyboard backlights, and the list goes on.....
-
FM Radio project detailed here is based on SONY 1619 chip. This is single chip radio means, everything from Antenna to Speaker is done by Sony IC, specially designed for AM/FM Radios. Radio is designed on a double sided PTH Board and works on USB power.....
-
This circuit controls the switching of the street light or porch light and it will be automated. This circuit of automatic lamp controller using 7806 regulator IC can be used to automate street lights, tube lights or any other house electrical lightning....
-
A motor spins the "propeller", and a small microprocessor keeps track of time and changes the pattern on seven LEDs with exact timing to simulate a 7 by 30 array of LEDs. It is an illusion, but it works nicely. Propeller clocks were to my knowledge first....
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The NL3ASD Schematic Pages - Here Can You Find The Schematics Of A Schematic Of A LED VU Meter With The UAA180....
-
The moss-tiles belong to a series of RAD experiments in planting the ceiling for healthier and richer interiors. RAD recognizes the ceiling as an untapped site for interior landscapes. It is an undisturbed zone that can be reclaimed by nature and linked to....
-
-
After casually assembling information about the cracklebox, I finally decided to build one in the spring of 2007. In short, the cracklebox is a solid state op-amp chip that has its inputs and outputs wired in a clever circuit in such a way that facilitates....
-
Here`s the Arduino code for reading incoming packets from the XBee and displaying the received analog sample on the LED display. Parsing an XBee packet is quite complex, unfortunately. But after studying the documentation for a while, it isn`t that hard.....
-
-
Laptop Schematic Circuit Diagram for Laptop Repair, Laptop Bios Password Remove....
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From a SONY double tape decks with model number "SONY TC-W230" I have picked a nice LCD VU-meter. I have decided to add it to my computer tower case. the following steps explain how to do this. this is based on IC lablelled CXD1017 (impossible to find a....
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-
The clap sensor is a simple circuit that incorporates a PC microphone, a microcontroller, and an output. The following diagram shows the logical circuit design: I chose the ATtiny84 microcontroller for this project because I`m familiar with the....
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-
Building a DIY Alarm System: The Concept So, you want to protect your property, or maybe a room, car, or even your backyard. The concept of an alarm system is to notify the ""alarm administrator"" that there is an intruder entering the previously designated....
-
The biggest struggle with flashing DVD drives on Xbox 360s has been the price tag of the probe to extract keys on some drives. The probe and kit is required to extract the DVD key, which is needed to perform a drive repair, flash, or backup of any kind. Who....
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-
-
-
The LOEWE F875 SENSOTRONIC CHASSIS 543/490 is realized with the F800 LOEWE Chassis serie and in the Line / Horizontal deflection output like a COLOR TELEVISION CHASSIS with EHT output with Tripler and Horizontal output with thyristor tech. LOEWE-OPTA....
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A multiple automatic brightness control for a television receiver including a first automatic brightness limiter (ABL) circuit responsive only to relatively long duration changes in brightness-producing current and a second ABL circuit responsive to....
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-
-
Generating variable audio frequencies with crystal precision is not often done because it isn`t easy to make. Low frequency quartz crystals are difficult to find, and each would only provide a singular frequency. Some small tweaking of the crystal....
-
Compact Fluorescent Lamps [CFL] are low in price, plentiful and easy to find. Unfortunately, the current crop of these lamps seldom lasts as long as their warranty. Usually only the electronics fail and the lamp part of the bulb assembly are still very....
-
The astable multivibrator is a unique form of the relaxation oscillator in which the in-phase feedback is provided by a separate transistor. The first multivibrator was built with vacuum tubes and the circuit was very popular from the start. Millions were....
-
A basic detector radio set that uses a vacuum tube instead of a crystal detector. This radio requires few components, and because it`s inherent simplicity it is easy to build. In spite it`s simplicity this receiver performs well if a high-strung long wire,....
-
Occasionally high voltage is necessary for experimenting with traditional vacuum tubes, cold cathode displays or other circuits that require high voltage (B+) power supplies. There is a way to avoid high voltage for tube circuits by using space charge tubes....
-
This unusual, simple multi-vibrator has only five components and uses neither vacuum tubes nor semiconductors but two miniature NE2 type neon lamps. This circuit interfaces best with vacuum tube or FET type high-impedance circuits. Almost any type of neon....
-
The simplest way to bias a transistor amplifier is by the fixed-bias circuit. The supply voltage is connected to the transistor`s base terminal trough the R1 current limiting resistor. The value of the bias resistor is usually selected based on the....
-
One of the many random devices I`ve found in my sometimes frightening basement was an HP frequency counter. The thing is built like a rock, still works perfectly and the manual contains full parts list, a complete circuit diagram and a description of the....
-
-
DC current (Battery) is needed by the carbon transmitter to make the phone work. The way the telephone company does things is to feed battery to a telephone line using a device that allows the DC (Direct Current) to flow but does not short out the AC....
-
-
This is a project for a versatile, digital signal processor (DSP) based generic driver and controller circuit for Solid State Tesla Coils (SSTCs). Support for all new topologies (DRSSTC, OLTC, PLL-SSTC, . ) can be implemented programmatically. The same....
-
Which switch mode power supply (SMPS) topology should one start with IMHO although the schematic of a full-bridge looks a bit complicated compared to push-pull and half-bridge designs, sticking straight to a full-bridge topology or its smaller version, the....
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A PFC capacitor on the mains side can act as "current limiting" to some extent. Otherwise, use resistive or additional inductive ballast (a MOT in series with shorted secondary winding). Power factor correction (PFC) shifts the VA rating of the transformer....
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This time on we Will Share About Schematics Of Radios Schematic Of Programmer Radio Latest Info at Onmilwiki....
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This time on we Will Share About Yo3dac Homebrew Rf Circuit Design Ideas Latest Info at Onmilwiki....
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-
-
Advanced power door lock management is a necessity now given today`s complex automotive systems. The need to reduce vehicle weight has prompted these more need a schematic for the drivers door lock mechanism for a 93 chevy g-20 The third wire changes,....
-
-
This is a deeper look into the Port-O-Rotary phone. We stuck the GM862 cellular module into an old rotary phone enclosure, and voila, it was an instant, ridiculous, hit. Really simple - the GM862 requires 3. 8V and a Lithium Polymer outputs 3. 7-4V. No....
-
Once you discover how to setup an RS232 connection, it`s really just cut-and-paste for future projects. Please note this is a relatively compact SMD version of the power supply. This can easily be obtained with through-hole components using a breadboard.....
-
You`ve probably heard about the CP210x USB ICs from Silicon Labs, now here`s an application that uses it. The CP2102 gives us 3V TTL to a VCP (virtual comm port) over USB as well as generating the 3. 3V needed for the board. There are a couple things to....
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A simple RS232 example project that takes all the power it needs from the serial port. Use it to power your microcontroller and communicate between serial port and microcontroller. Takes advantage of the fact that pc serial ports will accept 0-5V rather than....
-
This is a circuit to test zener diodes. It hooks up to a 120V AC line and boosts the output voltage to over 300V allowing you to test zener diodes of any voltage. The circuit also has a push button switch to triple the current, if needed. The output is....
-
An unconventional, scalable high efficiency 12V solar power system and battery charge controller withlow voltage cutout to protect thebattery. (ideal for systems of 50W or less) This circuit was designed for small to medium lead acid systems and feature a....
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-
This mains AC Relay module uses a 5V relays that can run straight off the Arduino and switch 230V, following the circuit on the arduino website here: relays. pdf I`ve built my own (very simple) evergy monitoring and control system (using Arduino 2009), using....
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To see how RFM12B wireless compares to other similar wireless options (e. g Xbee, XRF etc. ) check out this well compiled comparison overview byStuart Poulton:. 3 different ISM band frequencies: 433MHz (worldwide), 868MHz (Europe), 915MHz (USA & Australia....
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-
This documentation was compiled as a result of a bee hive temperature monitoring project. Multiple DS18B20 temperature sensors were used to sense the temperature at various locations in the hive. An Arduino with a Nuelectronics sensor shield was used to log....
-
The Vinculum board is controlled using DOS commands and so every time you send a command if the command is executed successfully the board sends a D:> response that indicates its ready for the next command. If you try and send commands faster than the....
-
-
-
-
We see the control board with 7-segment LED display for temp and power readout up in front. The obligatory fan mounted down in the base of the unit, and a lovely induction coil. Looks like about the same gauge Litz wire as the Burton unit but with a much....
-
-
FM Wireless Microphone Schematic. In some applications, the use of the microphone cable is sometimes very difficultly. So use a cordless microphone is needed. Microphone as it is often referred to as wireless microphones (cordless microphone). Here I share....
-
This design replaces the incandescent bulbs in the stop, tail and indicator lights of an MZ or other motorcycle with a six-volt electrical system,with high-intensity Lumiled LEDs. This gives the following advantages: A single Lumiled with a power....
-
With 4 batteries (as for instance in the flashlight) it is possible to produce per hour hydrogen and oxygen in a quantity which corresponds to regular grade fuel in approximately 42 litres. Until the batteries are exhausted, they produced for calorific....
-
This SCADA controller is designed for use with distribution (13. 2kV/4. 8kV) substation transformer breaker positions where an automatic throw-over is present. The RTU voltage is 24V. DC. The breaker status and Lockout relays operate at 48V. DC...
-
For longest life, we recommend you run them at 20-25 milliamps (ma). HOWEVER, in our LED flashlight conversions (and many commercial LED flashlights), the LEDs are run at 50-60ma, twice the rated current. One of our test LEDs ran at 98ma for over 200 hours....
-
A sequencer used for music is a device that sequences musical events for predictable playback. For early electronic instruments these sequencers often take the form of a collection of switches that are cued in series and which trigger some other device like....
-
-
-
-
The information here is primarily intended for home brewers that want to build the analyzer or want to design their own based on the principles of the design. It is not intended for use in commercial applications ! If you want to build the analyser a warning....
-
The purpose of this experiment is to discover the properties of a nonlinear circuit which closely approximates a driven pendulum. It`s a great introduction to nonlinear phenomena such as period doubling and chaos. "Chaotic States and Routes to Chaos in the....
-
-
This circuit was in EDN`s "design ideas" section in the March 5, 2007 issue. It`s a fairly simple circuit and an easy way to investigate how the inductance of a toroid (or any core) is changed by saturation, which in this case is caused by applying a current....
-
A little lightweight MFJ-4225MV power supply. It puts out about 25 A, maybe 20 continuous, which is enough for my IC-706GII or my new K3. I also liked the fact that the fan was fairly quiet. But that was in comparison with myFT-1000 with its fairly noisy fan....
-
Emergency lights, fuse/relay panel and fresh air blower switch, Engine control module and ignition coil, console switch, power windows, ABS control unit and ABS hydraulic unit, fuse relay panel and instrument cluster, and taillight, fuse/relay panel and....
-
The schematic shows the design of a circuit that senses the resistance of the skin and converts it into a useful switching signal. The touch switch contacts can be made from two small metal plates, rivets, nails, etcetera, which are placed close together on....
TDA 2030 is produced by SGS Ates and is a complete audio amplifier. Class AB amplifier to deliver final cand 14 watts into 4 ohms, a source of +-14V power. Connecting two TDA2030 through cheap power transistors that can create an amplifier that can deliver a....
The following experiment shows how interestingly Mr. Steven could draw free energy from air using his home-built sec exciter coil tower, he used it to a feed a small LM317 power supply unit and made it work successfully. Read more. "When i hand wind my coils....
You can control any electrical gadget from any part of the world through your cell phone, that too without spending a penny for the individual commands. Whether it`s you vehicle, your basement door, your mansion gate or simply the air conditioner of your....
The following article discusses a few very simple intrusion detector circuits, or simply burglar alarm circuits. The presented designs are simple yet extremely effective with the functions. The triggering stage may consist of a voltage/current amplifier....
The following multi-function water level controller circuit post is based on the suggestions expressed by Mr. Usman. Lets learn more about the requested modifications and the circuit details. 1) To protect the motor from potential overheating (or as a safety....
This circuit is a Mosfet-based linear voltage regulator with a voltage drop of as low as 60mV at 1A. The circuit uses a 15V-0-15V transformer and employs an IRF540 N-channel Mosfet (Q1) to deliver the regulated 12V output. The gate drive voltage required for....
It`s always a bit difficult to measure the current in the positive lead of a power supply, such as a battery charger. Fortunately, special ICs have been developed for this purpose in the last few years, such as the Burr-Brown INA138 and INA168. These ICs....
The equalizer presented in this article is suitable for use with hi-fi installations, public-address systems. mixers and electronic musical instruments. The relay contacts at the inputs and outputs, in conjunction with S2, enable the desired channel to be....
This is a design circuit for stereo encoder. This circuit is using BH1417 Stereo Encoder. This circuit using with pre-emphasis, limiter so that the music can be transmitted at the same audio level, low pass filter that blocks any audio signals above 15 KHz....
Make LED lighting that is powered directly from the AC mains (120-Volt AC), due to the lack of having any inexpensive AND safe enclosures for the circuitry. While I was gathering some old failed CFLs one day with the intention to recycle them, I realized....
Mother Bug is a simple, interactive electronic message board. disguised as a "bug. " Text messages are pre-programmed into the memory of the device`s microcontroller. When triggered, the microcontroller uses a 5 x 7 LED matrix display to print out the....
The controller is entirely hardware based, and provides the typical sequencing for a standard 3-light traffic signal. I built this traffic light controller / sequencer when I was firstlearning electronics, and it is what I would consider a crude and ugly....
The USB standard restricts the current consumption of all USB devices to either 100mA or 500mA depending on the specifics of the USB hub and/or host controller (i. e. computer) that is supplying the power. Ideally, no USB device should ever pull more than....
How do you make an LED turn on when it gets dark. You might call it the "nightlight problem, " but the same sort of question comes up in a lot of familiar situations- emergency lights, street lights, silly computer keyboard backlights, and the list goes on.....
FM Radio project detailed here is based on SONY 1619 chip. This is single chip radio means, everything from Antenna to Speaker is done by Sony IC, specially designed for AM/FM Radios. Radio is designed on a double sided PTH Board and works on USB power.....
This circuit controls the switching of the street light or porch light and it will be automated. This circuit of automatic lamp controller using 7806 regulator IC can be used to automate street lights, tube lights or any other house electrical lightning....
A motor spins the "propeller", and a small microprocessor keeps track of time and changes the pattern on seven LEDs with exact timing to simulate a 7 by 30 array of LEDs. It is an illusion, but it works nicely. Propeller clocks were to my knowledge first....
The NL3ASD Schematic Pages - Here Can You Find The Schematics Of A Schematic Of A LED VU Meter With The UAA180....
The moss-tiles belong to a series of RAD experiments in planting the ceiling for healthier and richer interiors. RAD recognizes the ceiling as an untapped site for interior landscapes. It is an undisturbed zone that can be reclaimed by nature and linked to....
After casually assembling information about the cracklebox, I finally decided to build one in the spring of 2007. In short, the cracklebox is a solid state op-amp chip that has its inputs and outputs wired in a clever circuit in such a way that facilitates....
Here`s the Arduino code for reading incoming packets from the XBee and displaying the received analog sample on the LED display. Parsing an XBee packet is quite complex, unfortunately. But after studying the documentation for a while, it isn`t that hard.....
Laptop Schematic Circuit Diagram for Laptop Repair, Laptop Bios Password Remove....
From a SONY double tape decks with model number "SONY TC-W230" I have picked a nice LCD VU-meter. I have decided to add it to my computer tower case. the following steps explain how to do this. this is based on IC lablelled CXD1017 (impossible to find a....
The clap sensor is a simple circuit that incorporates a PC microphone, a microcontroller, and an output. The following diagram shows the logical circuit design: I chose the ATtiny84 microcontroller for this project because I`m familiar with the....
Building a DIY Alarm System: The Concept So, you want to protect your property, or maybe a room, car, or even your backyard. The concept of an alarm system is to notify the ""alarm administrator"" that there is an intruder entering the previously designated....
The biggest struggle with flashing DVD drives on Xbox 360s has been the price tag of the probe to extract keys on some drives. The probe and kit is required to extract the DVD key, which is needed to perform a drive repair, flash, or backup of any kind. Who....
The LOEWE F875 SENSOTRONIC CHASSIS 543/490 is realized with the F800 LOEWE Chassis serie and in the Line / Horizontal deflection output like a COLOR TELEVISION CHASSIS with EHT output with Tripler and Horizontal output with thyristor tech. LOEWE-OPTA....
A multiple automatic brightness control for a television receiver including a first automatic brightness limiter (ABL) circuit responsive only to relatively long duration changes in brightness-producing current and a second ABL circuit responsive to....
Generating variable audio frequencies with crystal precision is not often done because it isn`t easy to make. Low frequency quartz crystals are difficult to find, and each would only provide a singular frequency. Some small tweaking of the crystal....
Compact Fluorescent Lamps [CFL] are low in price, plentiful and easy to find. Unfortunately, the current crop of these lamps seldom lasts as long as their warranty. Usually only the electronics fail and the lamp part of the bulb assembly are still very....
The astable multivibrator is a unique form of the relaxation oscillator in which the in-phase feedback is provided by a separate transistor. The first multivibrator was built with vacuum tubes and the circuit was very popular from the start. Millions were....
A basic detector radio set that uses a vacuum tube instead of a crystal detector. This radio requires few components, and because it`s inherent simplicity it is easy to build. In spite it`s simplicity this receiver performs well if a high-strung long wire,....
Occasionally high voltage is necessary for experimenting with traditional vacuum tubes, cold cathode displays or other circuits that require high voltage (B+) power supplies. There is a way to avoid high voltage for tube circuits by using space charge tubes....
This unusual, simple multi-vibrator has only five components and uses neither vacuum tubes nor semiconductors but two miniature NE2 type neon lamps. This circuit interfaces best with vacuum tube or FET type high-impedance circuits. Almost any type of neon....
The simplest way to bias a transistor amplifier is by the fixed-bias circuit. The supply voltage is connected to the transistor`s base terminal trough the R1 current limiting resistor. The value of the bias resistor is usually selected based on the....
One of the many random devices I`ve found in my sometimes frightening basement was an HP frequency counter. The thing is built like a rock, still works perfectly and the manual contains full parts list, a complete circuit diagram and a description of the....
DC current (Battery) is needed by the carbon transmitter to make the phone work. The way the telephone company does things is to feed battery to a telephone line using a device that allows the DC (Direct Current) to flow but does not short out the AC....
This is a project for a versatile, digital signal processor (DSP) based generic driver and controller circuit for Solid State Tesla Coils (SSTCs). Support for all new topologies (DRSSTC, OLTC, PLL-SSTC, . ) can be implemented programmatically. The same....
Which switch mode power supply (SMPS) topology should one start with IMHO although the schematic of a full-bridge looks a bit complicated compared to push-pull and half-bridge designs, sticking straight to a full-bridge topology or its smaller version, the....C0QBmk~%24(KGrHqIOKkIEq4M%2Bu,)1BK2zHH580Q~~_35.GIF "schematic of programmer radio")
This time on we Will Share About Schematics Of Radios Schematic Of Programmer Radio Latest Info at Onmilwiki....
This time on we Will Share About Yo3dac Homebrew Rf Circuit Design Ideas Latest Info at Onmilwiki....
Advanced power door lock management is a necessity now given today`s complex automotive systems. The need to reduce vehicle weight has prompted these more need a schematic for the drivers door lock mechanism for a 93 chevy g-20 The third wire changes,....
This is a deeper look into the Port-O-Rotary phone. We stuck the GM862 cellular module into an old rotary phone enclosure, and voila, it was an instant, ridiculous, hit. Really simple - the GM862 requires 3. 8V and a Lithium Polymer outputs 3. 7-4V. No....
Once you discover how to setup an RS232 connection, it`s really just cut-and-paste for future projects. Please note this is a relatively compact SMD version of the power supply. This can easily be obtained with through-hole components using a breadboard.....
You`ve probably heard about the CP210x USB ICs from Silicon Labs, now here`s an application that uses it. The CP2102 gives us 3V TTL to a VCP (virtual comm port) over USB as well as generating the 3. 3V needed for the board. There are a couple things to....
A simple RS232 example project that takes all the power it needs from the serial port. Use it to power your microcontroller and communicate between serial port and microcontroller. Takes advantage of the fact that pc serial ports will accept 0-5V rather than....
This is a circuit to test zener diodes. It hooks up to a 120V AC line and boosts the output voltage to over 300V allowing you to test zener diodes of any voltage. The circuit also has a push button switch to triple the current, if needed. The output is....
An unconventional, scalable high efficiency 12V solar power system and battery charge controller withlow voltage cutout to protect thebattery. (ideal for systems of 50W or less) This circuit was designed for small to medium lead acid systems and feature a....
This mains AC Relay module uses a 5V relays that can run straight off the Arduino and switch 230V, following the circuit on the arduino website here: relays. pdf I`ve built my own (very simple) evergy monitoring and control system (using Arduino 2009), using....
To see how RFM12B wireless compares to other similar wireless options (e. g Xbee, XRF etc. ) check out this well compiled comparison overview byStuart Poulton:. 3 different ISM band frequencies: 433MHz (worldwide), 868MHz (Europe), 915MHz (USA & Australia....
This documentation was compiled as a result of a bee hive temperature monitoring project. Multiple DS18B20 temperature sensors were used to sense the temperature at various locations in the hive. An Arduino with a Nuelectronics sensor shield was used to log....
The Vinculum board is controlled using DOS commands and so every time you send a command if the command is executed successfully the board sends a D:> response that indicates its ready for the next command. If you try and send commands faster than the....
We see the control board with 7-segment LED display for temp and power readout up in front. The obligatory fan mounted down in the base of the unit, and a lovely induction coil. Looks like about the same gauge Litz wire as the Burton unit but with a much....
FM Wireless Microphone Schematic. In some applications, the use of the microphone cable is sometimes very difficultly. So use a cordless microphone is needed. Microphone as it is often referred to as wireless microphones (cordless microphone). Here I share....
This design replaces the incandescent bulbs in the stop, tail and indicator lights of an MZ or other motorcycle with a six-volt electrical system,with high-intensity Lumiled LEDs. This gives the following advantages: A single Lumiled with a power....
With 4 batteries (as for instance in the flashlight) it is possible to produce per hour hydrogen and oxygen in a quantity which corresponds to regular grade fuel in approximately 42 litres. Until the batteries are exhausted, they produced for calorific....
This SCADA controller is designed for use with distribution (13. 2kV/4. 8kV) substation transformer breaker positions where an automatic throw-over is present. The RTU voltage is 24V. DC. The breaker status and Lockout relays operate at 48V. DC...
For longest life, we recommend you run them at 20-25 milliamps (ma). HOWEVER, in our LED flashlight conversions (and many commercial LED flashlights), the LEDs are run at 50-60ma, twice the rated current. One of our test LEDs ran at 98ma for over 200 hours....
A sequencer used for music is a device that sequences musical events for predictable playback. For early electronic instruments these sequencers often take the form of a collection of switches that are cued in series and which trigger some other device like....
The information here is primarily intended for home brewers that want to build the analyzer or want to design their own based on the principles of the design. It is not intended for use in commercial applications ! If you want to build the analyser a warning....
The purpose of this experiment is to discover the properties of a nonlinear circuit which closely approximates a driven pendulum. It`s a great introduction to nonlinear phenomena such as period doubling and chaos. "Chaotic States and Routes to Chaos in the....
This circuit was in EDN`s "design ideas" section in the March 5, 2007 issue. It`s a fairly simple circuit and an easy way to investigate how the inductance of a toroid (or any core) is changed by saturation, which in this case is caused by applying a current....
A little lightweight MFJ-4225MV power supply. It puts out about 25 A, maybe 20 continuous, which is enough for my IC-706GII or my new K3. I also liked the fact that the fan was fairly quiet. But that was in comparison with myFT-1000 with its fairly noisy fan....
Emergency lights, fuse/relay panel and fresh air blower switch, Engine control module and ignition coil, console switch, power windows, ABS control unit and ABS hydraulic unit, fuse relay panel and instrument cluster, and taillight, fuse/relay panel and....
The schematic shows the design of a circuit that senses the resistance of the skin and converts it into a useful switching signal. The touch switch contacts can be made from two small metal plates, rivets, nails, etcetera, which are placed close together on....
