SWR Meter
Posted on Oct 8, 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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This circuit is designed to trigger on a 1 khz tone. to change this frequency - refer to the...
DC Servo Motor Driver kit, designed using MC33030 IC, is the fastest and low cost way of getting...
It was designed for an application in a welding machine: there are lots of bits of machinery...
A monostable relay has two states: operative when a large enough current flows through its coil...
This circuit will switch off the line supply to audio or video equipment if there has been no...
One of the most popular electronic IC number. There are many different symbols depending on the...
I want to use a picMicro 5v microcontroller combined with the figure 10 circuit from Link1 (Shown...
A fingerprint door lock, and the only thing that`s stopping me from purchasing the components is...
This Do-it-yourself lightning detector ambit can be a abnormally acute changeless electricity...
A simple telephone transmitter circuit that is ideal for transmitting the telephone conversation...
This micro flasher circuit continuously emits flashing light with the consumption of very less...
The TPA2011D1 is a 3. 2-W high efficiency filter-free class-D Audio Power Amplifier (class-D amp)...
The Wien-bridge sine-wave oscillator uses a light bulb to stabilize its amplitude. The circuit in...
This audio mixer circuit diagram electronic project is designed using few common electronic...
Build a sine wave generator. I use this schematic:. The op-amp I have used is the TL082 and the...
The line is purposefully not straight, to see how it would do with zig-zags and splits, as are...
While most commercial grade signal generators offer more than just outputting a sinusoidal...
The current sourcing/sinking capability of the I/O pins on Raspberry Pi is quite limited....
The nicety of air coils: one can build them at home rather easily and they seem to swing at a...
Boil water or cook with gas stove, it is sometimes due to water spills extinguish the fire...
Circuit shown in Figure 3-196. The circuit has a resistance level start, under voltage relay KAz...
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