Transistor amplifier circuits
Posted on Feb 6, 2014
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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 is provided as a "prototyping project" as no PC board has been produced. The...
Make your own solar powered robot at home using things you probably already have. Transistors,...
Rf = 100 k preset - The slider is set about a quarter of the way round. This is used to control...
The goal is to be able to turn on and off the load (an 8051 based uC) by pressing both switches....
The circuit above is the canonical AC coupled common emitter amplifier which is typically used as...
This circuit measures the distance covered during a walk. Hardware is located in a small box...
Circuit transistor tester is a fairly simple circuit tester. Transistor tester circuit shown...
This timer uses two 555 ICs to Vary the desirable output. VR1 and VR2 are the potentiometers to...
This application note describes a low cost, high performance UHF short-range Radio ASK receiver...
The first versions operated from ±15V supplies, featured bandwidths of 50 MHz, and delivered slew...
How does one measure small inductances with a precision of at least two, and possibly three,...
Capacitance/C tuck bit IJ volume level change is directly converted into electrical parameters,...
FKL-32 type automatic thyristor excitation device suitable for terminal voltage of 400V, capacity...
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