Musical & Effects Circuits
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I have made a major correction to the schematic as a result of getting a second board going. The manual sweep circuit should return to ground not vref. I also increased the feedback limiting resistor from 100K to 270K. This area of the circuit might bear.... -
The music equalizer display schematic is not a very difficult one to build. I managed to fit it all on a nice little breadboard. You will need all the parts listed out on the previous page to put it together. It is quite wire-intensive so make sure you have.... -
By testing many different circuits, I ended up with the simplest ( in terms of parts count and straight signal flow) design, similar to those " Heathkits", with one tone control and FET buffer. From modern features - only True By-Pass switching, DC jack and.... -
The heart of the circuit is IC1, General Instrument`s AY-3-1350 melody-synthesizer IC. IC2 is a TCM1512 telephone ring detector IC that is powered by the telephone line. The circuit`s operation begins when IC2 senses a ring pulse on the telephone line. The.... -
Tremolo circuit is a kind of sound effect. We can see this type of effect is applied in guitar effect pedals. Tremolo effect is produced if we modulate the amplitude of an audio signal. The shape of modulating signal can vary from square wave, sawtooth, or.... -
Hall-effect switches have several advantages over mechanical and optically coupled switches. They`re insensitive to environmental light and dirt, they don`t bind, and they don`t sustain mechanical wear. Their major drawback is that they require three wires.... -
The current Milwaukee Guitar design uses an off-board computer (a desktop PC) to control the servomotors. A standard USB number pad is connected to the computer which then provides output signals through a Velleman K8055 USB experiment interface board to the.... -
The mains supply can be conveniently reduced with no heat dissipation by the reactance of C1; then rectified by D1 (1N4007) and D2 (1N4007) and clamped to 24V.... -
In personal electronics and computer audio system, the SSM2167 is a complete and flexible solution for conditioning microphone inputs. It is also very good for.... -
This guitar effect circuit uses a simple high gain amplification, followed by a symmetric clipping using parallel diodes clipper. The gain of the 741 op-amp.... -
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I have a 69 Princeton Reverb which is labled as having an AA764 circuit. When perusing various web resources for Fender Amplifier Schematics.... -
In some versions you don`t have the input buffer at all, and in some versions the buffer transistors have different biasing or different transistors. Some have even BIG errors. Errorswith the biasing, errors with the transistor symbols. I understand that the.... -
This page provided to the domain owner free by Sedo`s Domain Parking. Disclaimer: Domain owner and Sedo maintain no relationship with third party advertisers. Reference to any specific service or trade mark is not controlled by Sedo or domain owner and does.... -
This is a A/B Box pedal schematic for electric guitar was designed by Rick Barker. This A/B Box effect was originally designed for switching between different harmonica mics. This A/B Box featured low noise dual preamp for better effect.... -
This is the schematic diagram of Electro-Harmonix Small Stone Phaser guitar effect pedal. The Small Stone is somewhat special in applying Operational Transconductance Amplifiers (OTA s) for phase shift stages rather of opamps with variabl.... -
This circuit is a modified hartley oscillator with a couple of extra components included. The transformer is a small audio transformer, type LT700. The primary is center tapped with an impedance of 1Kohms at 1KHz. The secondary has an impedance of 8 ohms.....
New Circuits
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This project fits more for custom made battery casing that can have more space to hide things inside. This switch with few alterations can be used for any other project as well but is designed based on e-bike needs! This project use a clever functionality of.... -
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is.... -
Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to.... -
Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This.... -
The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the.... -
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound,.... -
In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the.... -
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power.... -
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower.....
Popular Circuits
Just to prove that transistors can also be useful in logic situations; this is a data latch and...
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A reverse polarity protection circuit, similar to that in Figure 2 of SLVA139: Reverse...
The inverting input is held low through a 10K resistor when the circuit is powered on but not...
The shown LEDs in the circuit sequentially light and "dance" as per the level of the music...
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For this project the 1 1/4 meter Midland 13-509 ischosen, mainly because it`s use in several...
A speed closed loop control of DC motor using back emf sensing. Running a DC motor in one...
The overhaul has the following features: online judge diodes, transistors is good or bad; test...
1832 for bridge measurements, the external circuit is very simple, as shown in FIG. Belly adjust...
FET has high input impedance, high input impedance amplifier can be made. However, FET amplifying...