Multilayer capacitor doubles as varactor
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 project based on Atmel AT89C52 and Dallas real-timeclock (RTC) chip DS12887 can be used to...
This design circuit is shows an LM1893 power line modem circuit. This circuit is used to transfer...
If you want to do the ground loop elimination in audio path, you have to cut the galvanic...
This is a slight modification of that circuit. In the previous circuit you have to keep the...
This 8 function serial Christmas lamp controller is based on the IC UTC 8156 from Unisonic....
This is a simple LED torch circuit based on IC MAX660 from MAXIM semiconductors. The MAX 660 is a...
can be arranged in a circle to represent the 12 hours of a clock face and an additional 12 LEDs...
A warm weather problem with 2003 Audi A6 2. 7T. When the car sits in the sun the radio loses...
Direct-reading" SWR meters that automatically compute the ratio of Forward and Reverse powers (i....
The potentiometer value is not critical: anything from 1 k © to 100 k © is acceptable. If you...
If you go to most supermarkets today you will see plug in mains powered digital programmable...
This device has been designed as an example application of an expandable system of modules for...
Circuit shown in Figure 3-49. The circuit autotransformer out of operation by the time relay KT...
Circuit shown in Figure 3-78. The time line also use two relays to achieve automatic control,...
Electronic filter The effect of the capacitor c5 is filtered. Cs fact constitute a composite pipe...
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