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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The human speech apprehend a small area of frequencies, that is extended from 300HZ until 3KHZ....
This circuit will allow you to set the gain of two stereo channels to the same level. The signal...
100 W output at 50 MHz is available from this circuit. Ul and Q2 form a T-R relay driver,...
This circuit confuses the infra-red receiver in a TV. It produces a constant signal that...
The Clapp oscillator is one of several types of electronic oscillator constructed from a...
A powerful buzzer in the room, combined with a pushbutton at the bottom of the stairs or in the...
This tour, available in Stainless DIL 8 legs, can measure 4 analog voltage independent between 0...
the gate terminals sensitivity to changes in voltage. The gate terminal here is left open...
Had developed the 7 MHz CW TRX for my first trip to the US. The receiver worked very well....
A timing and counting circuit using integrated circuit chips with seven-segment LED displays is...
Before one magnet was 2x2x3 cm, now it is a round one 1. 5 x 2 cm only. This makes a huge...
This inverter can deliver high-voltage ac or dc, with a rectifier and filter, up to several...
The first circuit of nickel-cadmium battery discharge before recharging to eliminate the...
Circuit shown in Figure 3-187. When you start, then people start auto ZQB step-down transformer....
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