JEC-2 delay circuit diagram consisting of b
Posted on Dec 11, 2010
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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..... -
The best human ear can capture sounds from 20Hz to 20KHz. These limits are known to be the broadest that can exist. Normally the normal limits range from 100Hz to about 13KHz and depend on the age and health of the individual. We for our measurements and to....
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The usual chargers of battery automotive, are simple and cheap appliances that charge...
A simple X-band radar detector is capable of indicating changes in rf radiation strength at...
A long time ago when telephones were so simple almost nothing could go amiss from an electrical...
This is a simple proximity switches with IC 4049th The IC4049 is a bipolar monolithic integrated...
A 12 volt relay is connected between the two stages in a way as when it will get 12 volts from...
The ATA5743 is a multi-chip PLL receiver device supplied in an SSO20 package. It has been...
This design allows to operate two intercom stations leaving the operator free of using his/her...
The objective of this project is to use inexpensive PIR sensor to detect if a human has moved. To...
The required output at the inverter is 220/230V @60Hz. Basically, let me say i need an inverted...
Those pickups go to their own volume controls that are push/pull so I can coil tap them, and then...
C ,. C! Composition ratio circuit. Ri. C, constituting the shift shed circuit diode VDi - VD4...
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