Adjustable sine-wave audio oscillator
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.....
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This is a 40 meter transmitter which uses two valves, the 6AU6 and 6GV8. The construction is...
Digital-ProfiLab was designed for measurement and control applications, combining features like...
The AquaCont is an electronic system witch permits to manage and to monitor most of the...
The human speech apprehend a small area of frequencies, that is extended from 300HZ until 3KHZ....
Can be directly connected to CD players, tuners and tape recorders. Simply add a 10K Log...
a low cost, high-speed monolithic analog multiplexer. The system works as follows: Selects a...
The monolithic quad operational amplifier provides an inexpensive way to increase display...
Provide your radio with a actual cord signal, again acclimatize the HIGH LEVEL pot to the...
Circuit given below is configured on astable mode of operation. In place of a fixed resistance,...
The wah will work before the amplifier but sounds very low in volume and it sounds scratchy when...
The logical first choice was to start out with simple regenerative circuits. Just one or two...
As shown in Figure as a switching power supply to work with linear regulated power supply. Its...
Capacitors C2, C3, diode VD2, VD3 and other components simple capacitive half-wave rectifier...
Clock oscillator is typically used digital signal processing circuit and a microprocessor...
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