Solder Aid
Posted on Jul 31, 2015
PCB file: Click here to download 255 file.PCB file: Click here to download 255 file.
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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Many a times one needs an ex- tra telephone ringer in an ad- joining room to know if there is an...
High quality, noise free, wireless FM transmitter/receiver operates over standard power lines....
The Magnitude Comparator is a type of device which compares the two 4 bit binary inputs and...
Most of the CDROMS available have an Audio-Out Output to either plug in the headphones or connect...
Here is a schematic of a simple 555 organ circuit. The circuit is consist of two parts first 555...
The circuit diagram shown here is a very sensitive wireless relay switch that can be used to...
Here is the circuit diagram of a simple 3 channel audio splitter based on the IC NE5532. NE5532...
This application note describes a driver solution developed using the Zetex ZXLD1362 LED Driver...
The multimeter should be set to the lowest dc volts range for maximum sensitivity. This is...
An ultrasonic beacon and a ultrasonic receiver is very similar to a beam barrier circuit, the...
The UTP Cable Tester can be used for many purposes. Mainly to test a UTP network cables of...
A vacuum fluorescent display (VFD) tube is a type of tube which consists of a hot cathode...
Car circuit used by the external voltage controlled amplification of wideband amplifiers lC...
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