DIY mobile phone jammer Schematic Diagram
Posted on Feb 5, 2014
Related Circuits
New Circuits
-
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.....
.
This multimeter was designed to measure output voltage and current in a PSU, where the current...
If the tube is level with respect to gravity, the bubble resides in the tube"s center and the...
This divider uses a variable-length shift register, a type-D flip-flop, and an inverter. The...
Many record players unfortunately exhibit two undesired side effects: rumble (noise caused by...
Usually keyboard is connected by using matrix type of connection a‚ rows and columns. For...
This frequency counter uses your existing digital multimeter as the display unit that is why it...
The basic problem for me is that gates on a logic circuit appear to be creating power from...
This is a simple audio amplifier circuit fabricated around BEL1895 1W audio amplifier IC. This...
The user interface will consist of a single button and several LEDs or a RGB LED through which...
A simple RS232 example project that takes all the power it needs from the serial port. Use it to...
This is a very simple transistor tester circuit the circuit can be used to test NPN and PNP...
The output F1 pin 17 of the PLA U17 goes "low" when the BASIC ROM is selected. The KERNAL ROM...
Calibrate the measurement circuit by forcing a known conductor current and measuring the...
The EPIC Plus Programmer, Serial Programmer, USB Programmer or U2 USB Programmer may be used for...
characters left: