The schematic for this project is actually deceivingly simple compared to the complexity of what is happening in the circuit. So take a look below or click to view the full sized schematic. The two signals we`ve just generated are mixed together at the base of T2 and once it goes out of the collector of the transistor our continuous wave RF trans
Click here to download the full size of the above Circuit.
mission signal is ready. The board layout was done in a way so that everything was crammed together very tight. This is a difficult thing to do with through-hole parts, but not impossible. A ground plan covers the entire board (but is chopped up by the traces) so that all parts that need access to ground can have it easily. The ground plan is also very important as its acts as part of our antenna. I just chose a nice thick width that would transfer over nicely when building the PCB, however smaller trace widths seem to be a better choice when designing RF circuits. but at these low frequencies I don`t believe there will be any performance benefit. My PC board had extra space so I plugged in PyroElectro. com. You`ll notice the text is backwards, this is because during the toner transfer process, a bottom layer is technically printed out backwards, but once on the PCB it reads correctly.
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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