Vacuum Tubes Valves
Musical & effects
Yagi Uda Antennas
Metal Detector Circuits
Liquid Sensing Circuits
Light Sensing Circuits
Voltage Detector Circuits
Air-Gas Detection Circuits
Human Sensing Circuits
RF & Radiation
Optical Sensing Circuits
Free Energy Circuits
AC to DC & DC to DC
Solar Cell Circuits
Micro Power Circuits
Switching Power Supplies
Light Laser LED
Digital to Analog
Analog to Digital
Data Bus Circuits
Voltage to Pulse
Current to Voltage
Frequency to Voltage
RF Converter Circuits
Sine to Square Wave
Voltage to Current
voltage to frequency
Period to Voltage
Video Wall circuits
TV Video Circuits
Motor Control Circuits
8051 / 8052
PCB CAD Software
Car bike Circuits
555 Timer Circuits
Remote Control Toy
H Bridge Circuit
Interconnection & Timing
Digital Signal Integrity
Digital & Bipolars
Sensors & Detectors
Regulated Power Supply
4 Band Resistor
5 Band resistor
6 Band resistor
Musical & Effects Circuits
Musical & Effects Circuits
That circuit allows you to adjust the resistance (with a pot) and adjust the capacitance by opening or closing switches. So, you can have any combination of switches open or closed to get a different effective capacitance. as a side note, if he does crazy stuff and causes odd ringing sounds to come out of it. Or if after there are sounds there are
Mains Trigger Musical Door bell
Mains Trigger Musical Door bell using musical ic UM3482 circuit diagram with description of mains trigger musical door bell various and unique doorbell project.
Timer with musical alarm
Here timer with musical alarm is a electronics timer project using CD4060.delaying from 1 minute to 2 hour.circuit diagram of timer with musical alarm various electronics project.
Music Driven Motor Schematic
Music Driven Motor Schematic. The geared motor drive the stem of a dancing flower to beat of music..
Hall Effect Sensors Magnetic Field
Hall Effect sensor will produce a voltage proportional to the magnetic field strength received by a Hall effect sensor tersebut. Sensor it only consists of a silicon layer and two electrodes on each side of the silicon. By the time without any influence of the magnetic field then the potential difference between the two electrodes is 0 Volt as...
Make a Simple Machine Gun Sound Effect Generator Circuit
An impressive little machine gun sound effect generator circuit is discussed here. Once built can be integrated with any audio amplifier to experience a roaring bullet studded war like simulation. A small hobby project which can be tried by all electronic enthusiasts will generate interesting machine gun sound effect over the connected loudspeaker
Connecting Hall Effect Sensor To BS2
I have several Hall Effect sensors and would like to use them with my BS2. One application would be to count wheel turns. I have done a search of the internet but can not find a schematic for connecting it to a BS2. Can anyone help me out with a schematic? I have attached a image of what I want to do. Thanks..
non musical endeavors
There are other chips or programs that do blanking and fading in from the side which is a cool effect. Like the signs at the ballpark. I don`t think this one does that particular trick but I intend to find out! The clock goes into slot machine mode every n minutes to avoid the dreaded cathode poisoning (of your cat). The second one was two 1-2W
555 timer music instrument
A very simple music instrument/keyboard for playing music using a 555 timer chip circuit, a piece of paper and a pencil. To see it in action watch the how-to-make video below. And then I made the much fancier automatic music player in the photo below by making a playing head and a way to feed in a long sheet of paper with the musical notes...
nixie music visualizer
spooky arduino projects 4 and musical arduino
The notes for the fourth and final class are up on the Spooky Arduino class page. At the end of the class, Mark of Machine Project bestowed upon each of the students a merit badge. It was great. Click above for a larger view of the badge. Here`s a quick project using techniques from this week`s class that turns an Arduino board and a few buttons a
um3561 based 4 sound effect generator
This is a really simple sound effect generator based single sound generator chip UM3561. The UM3561 will generate four kinds of sound effects. The basic operation is that the UM3561 will generate the sound signal, then the signal delivered to 2N3706 (as speaker driver) to be amplified so you can hear the sound from a speaker.
diy tremolo effect circuit
This tremolo effect circuit uses the XR2206 and the TCA730 IC which is designed as an electronic balance and volume regulator with frequency correction. The circuit is usefull for stereo channels and it also has the ability to simulate the Lesley effect aka rotating loudspeaker effect. Balance and volume settings are done with a linear potentiomet
build an infrasound generator circuit for ghost effects
A continuity tester is handy for checking that there is an electrical conducting path between two points. The following circuit has the advantage that it is very sensitive and it gives both a visual and audible indication of continuity. An audible tester is handy since you are normally looking at where you are placing the tester contacts rather th
soft musical telephone ringer
The normal telephone bell, at times (specially during night when one does not want to be disturbed), appears to be quite irritating. The circuit shown here converts the loud sounding bell into a soft and pleasing musical tone..
Guitar pre-amplifier using uA 741
A preamplifier circuit suitable for high impedance type electric guitar pickups is given here. The circuit is based on a uA 741 op-amp (IC1). The IC1 is wired as a non-inverting amplifier. The POT R1 can be used as a volume controller. The POT R6 can be used as tone controller. The switch S1 is used to produce brilliant or soft tonal...
Hall Effect switch
The circuit diagram shown here is of a Hall Effect switch. Hall Effect sensor IC DN6848 from Panasonic is the heart of the circuit. The DN6848 has a built-in Hall Effect sensor, Schmitt trigger circuit, power supply regulator and temperature compensation circuits integrated to a single chip. High sensitivity, low drift and excellent temperature st
Musical car reverse horn circuit
Here is a simple circuit that will produce a musical horn when ever your car is in reverse gear. The circuit uses two ICs for the operation, voltage regulator 7805(IC1) and musical tone generator UM66(IC2). The IC1 reduces the car battery voltage to 5V. The diodes D1 & D2 in combination produces an additional drop of 1. 4 V to give a 3. 6 V...
Musical horn circuit
Here is a simple circuit diagram of a simple musical horn using two NE555 ICs. Two ICs are wired as astable mutivibrators. The output of first multivibrator is given to the discharge (pin 7) of the second astable multivibrator. The combined effect of the astable multivibrators produces a musical tone at the output.
Musical Light Chaser Circuit with Diagram using IC CD4016
A simple musical light chaser circuit diagram and schematic using IC CD4016. This simple circuit blinks light according to sound/audio/music output and as a result 10 lights dance according to sound frequency..
Preamp Mixer Stomp-Box for Dobro Guitar
I designed and built this stomp-box forGrammy-winning resophonic guitar player Stacy Phillips. Stacy typically uses two transducers on his Dobro-style instruments: a piezo element mounted internally and a gooseneck-mounted electret microphone positioned an inch or so above the resonator cover. When I built this preamp in 1996, his microphone cons
Playing Music With 8051 Microcontroller : ECE Mini Project
Do you know our 8051 microcontroller can play music tones, here s an sample. The circuit & code given here will play the music for â€œwishes you to be ..
Guitar To MIDI Using The LogoChip V2
A guitar to MIDI interface was designed that was intended to serve as an interface between guitar playing and MIDI control of external hardware and software. This document describes the details of the design, experimentation, implementation and final outcome of the project. The original plan was not nearly completed in the time expected, as many...
AH1751-P HALL EFFECT LATCH
The AK4532 is a low-cost high-quality 16-Bit CODEC designed specifically for Internet Boxes, Network PCs, and to Interface with Audio Video controller ICs for standard PC applications. AKMs AK4532 serial Interface mode simplifies the design process on existing and new Audio projects. The converters CAN have a range of 4 to 50 kHz. For voice mail a
APX9132 Hall Effect Micro Switch IC
AT89C51-12PI is a sub package of AT89C51, If you need see the description, please click AT89C51. If you need AT89C51-12PI`s datasheet, please download it from below. By ATMEL Corporation
FM497 FM497 Hall Effect Pickup Ignition Controller
H1277 HIGH SENSITIVITY HALL EFFECT SENSOR IC WITH FG OUTPUT
The UTC H654 is integrated Hall Sensors with complementary output drivers designed for electronic commutation of brushless DC Fan. It composed of an on-chip Hall voltage generator, a differential Amplifier Schmitt Trigger an open-collector output on a single chip. Furthermore, an internal bandgap Regulator allows temperature compensated operations
H654 Complementary Output Hall Effect Latch
H66T32BA is a sub package of H66T19, If you need see the description, please click H66T19. If you need H66T32BA`s datasheet, please download it from below. By Micro Electronics Ltd.
L497 HALL EFFECT PICKUP IGNITION CONTROLLER
The LA1061M is an Antenna switching controller for mobile Radio equipment. The LA1061M uses a number of inputs from the receiver circuitry to select the main Antenna or sub-antenna according to signal strength and quality. Weak and strong signals are detected with the S-meter DC voltage and F. E. AGC voltage, respectively. Multi-path distortion is
MLX90224 Dual Hall Effect Latch
RGB Video Amplifier with OSD Input, MM1381XD, MM1382XD and MM1383XD are wideband RGB Video Amplifiers with OSD input, developed for monitors. The main differences among them are Video amp bandwidth, output rise time, and output fall time. By Mitsumi Electronics, Corp.
TEA1069 TEA1069; TEA1069A Versatile Speech/dialler/ringer With Music-on-hold
The TEA5711 is a high performance Bimos IC for use in AM/FM stereo Radios All necessary functions are integrated: from AM and FM front-end to AM detector and FM stereo output stages.
Audio Filters Circuits
Audio Amplifier Circuits
Audio Oscillator Circuits
Audio Mixer Circuits
Audio Equalizer Circuits
Audio Tone Balance Circuits
Beeper Buzzer Circuits
Vacuum-Tube Valves Circuits
Ultrasonic distance finder circuit
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 measured. There are three main categories of distance measurement methods in use: a) By...
Simple Metal detector circuit with CD4030
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 find something potentially valuable, hidden a few centimeters below the soil. So many...
Fully automatic watering circuit for flower pots
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 circuit comes as a solution to this problem. Depending on humidity of the pot at...
Simple deep searching metal detector circuit
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 circuit of this metal detector, it is possible to detect a metal coin in depth of 90 to...
Sub-Harmonic Bass Converter for Electric Guitars
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, such as filtering or distortion. Instead, a frequency division system produces outputs...
Echo Depth Sounding Sonar for Boats
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 calibration of the rope. This arrangement still exists in some yachts. The big...
100W HiFi Audio Amplifier Circuit
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 supply must be symmetrical so that no electrolytic capacitors are needed at the outlet....
Plant-Pot Water Level Indicator Circuit
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. The circuit of the device is shown in Figure 2. The water detection is made from the bottom...
Analogue Sound Preasure dB-Meter Circuit
The best human ear can capture sounds from 20Hz to 20KHz. These limits are known to be the broadest that can exist. Normally the normal limits range from 100Hz to about 13KHz and depend on the age and health of the individual. We for our measurements and to have a good accuracy we will get the limits of 20Hz to 20KHz. A sound to be heard does...
Digital Signal Integrity
Interconnection and Timing of Digital Circuits
CMOS Circuits Tutorial