Micro Power FM Broadcasting
Posted on Jul 13, 2012
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 circuit described here is that of a metal detector. The opera- tion of the circuit is based...
The circuit makes excellent use of the high slew rate, wide bandwidth, high input impedance, and...
Converter consists of four quad bistable latches activated in the proper sequence by the digit...
This simple circuit providers battery operated emergency lighting instantaneously upon failure of...
This circuit is useful in amateur radio VHF and UHF work where a mast-mounted antenna preamp is...
This is very simple charger 9V - 30V battery charger with main operation by IC LM317L and 2N222...
LM117/LM317 National Semiconductor Corporation is a three-terminal adjustable positive voltage...
One of the most useful gadgets a video enthusiast can have is a low-power VHF TV Transmitter....
The purpose of this circuit was to create a ring in which LEDs or Lamps illuminate sequentially....
Using the LTC3113 fixed frequency, buck-boost DC DC converter can be designed various power...
Most ohmmeters of the design shown in the previous section utilize a battery of relatively low...
A notch for a narrow frequency band of a few per cent or even less normally requires...
This circuit indicates the remaining battery life bAy varying the duty cycle and flash rate of an...
Circuit shown in Figure 3-187. When you start, then people start auto ZQB step-down transformer....
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