THREE FREQUENCY AUDIO OSCILLATOR
Posted on Feb 6, 2014
Related Circuits
New Circuits
-
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.....
.
This project uses the 1.2v rechargeable battery and solar panel from a Solar Garden Light. These...
The circuit uses a CA3060 triple OTA (two units serve as switched current generators controlled...
A unijunction transistor audio oscillator drives a small speaker. The oscillator"s frequency is...
Many power-factor-correction circuits use a boost converter to generate a regulated dc output...
This Voltmeter Ammeter was designed to measure output voltage of 0-70V / 0-500V with 100mV...
Almost all of the audio power amplifier if using integrated circuit amplifier as circuit shown...
8051 provides a transmit channel and a receive channel of serial communication. The transmit data...
Over 90% energy saving than incandescent or halogen bulbs Lifespan is over 50,000 hours. No...
The signal sources in the analog output stage of the PC SVGA card see the right impedance - 75...
This decibels meter circuit responds for sound pressure levels from about 60-70 dB(Decibels)....
In interfacing AC loads, isolation is very important. This because an interfaced circuit that do...
This is a circuit that will go off once it detects a certain amount of light. Once the light the...
A charge amplifier is an amplifier whose equivalent input impedance is a capacitive reactance...
Amp 2SC2922 and 2SA1216 (or 2SC3264 and 2SA1295) performance is very excellent more, it is good...
Circuit shown in Figure 3-168, which uses the controller SA grading speed and reversing control;...
characters left: