Nixie-Tube Clock
Posted on Apr 29, 2012
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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 555 is used as an oscillator, optimally around 15.76KHz (in North America). Power pins on the...
This inverter can deliver .high-voltage ac or de, with a rectifier and filter, up to several...
Figure A shows the circuit of a direct-trigger timing light. The trigger voltage is -taken from...
This circuit uses a tricolor LED display to indicate acceptable and unacceptable output voltages....
The AM Tuned Radio Frequency (TRF) receiver, has a sensitivity of about 1 m V at tbe input for an...
The equivalent series resistance (ESR) of a capacitor can be measured using this circuit and an...
I love the Arduino as a simple and accessible controller platform for many varied projects. A few...
Stabilized DC Power Supply with Short-Circuit Indication. The circuit gives you four different...
Nowadays, it is no longer necessary to use discrete components to build oscillators. Instead,...
This 200 watt audio amplifier circuit diagram is based on STK4050V high power audio amplifier IC...
A power filter is a device you put ahead of something like a GPS and MP3 player and or radar...
The Hex switches are connected to J2 as follows: pin 1=common of both switches (+5V) 2=LSB up to...
In this circuit a standard op-amp is wired as an astable multivibrator. The output is...
After answering all those questions, to yourself, and geting the answers and/or decisions on...
FIG, T is the excitation transformer, R, varistor, rectifier diodes to protect against VDii ~...
As shown in FIG constituted by INA217 professional miniature microphone (microphone) typical...
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