SF04E emission circuit diagram composed SF04B
Posted on Mar 28, 2007
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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A circuit that offers visual indication of fluid level in a vessel, with a switchable audible...
Switch-mode driven 1.5V bulbs. This device was designed on request, to control the light...
The article describes a simple and very cheap to drive white, blue or UV LEDs, used for example...
Synchronous switching is turning on only at the instant the ac supply voltage passes through...
This preamplifier provides proper loading ratio of better than - 70 dB (referenced to 10 to a...
This high-voltage pulse supply will generate pulses up to 30 kV. Ql and Q2 form a multivibrator...
Flame Feedback is a sound sculpture built from a speaker driver, a candle, and electronics. The...
With the aid of an (old) moving coil instrument it is very little effort to make a simple...
This circuit is permanently plugged into a mains socket and NI-CD batteries are trickle-charged....
problem is my MOSFET gets realy hot. due to the circuit is using half bridge and no mosfet...
In most of the industrial processes it is required to rotate DC (or AC) motor forward and reverse...
Whenever there is a need for battery-powered lighting, like for camping, solar powered cottages,...
This project is a simple 12V to 220V modified sine-wave inverter using 555 timer IC and CD4017...
E crystal oscillator circuit composed of several gates Several gates as shown by a crystal...
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