285 is indiscriminately using a battery-powered fluorescent lamp circuit, towns during a power outage use it as a temporary emergency according to the invention. Transistor V 7
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, the boosting transformer T, coil I, L:., And a capacitor c-. ~ G composed of inductance feedback oscillator oscillator, an oscillating voltage boosted line indiscriminately L. After opening pressure direct contact is added to both ends of the fluorescent tube E, E lamp excitation light. VT use 2SD88 Type and other high-power three silicon diodes, p 50 can. E is sw Chan fluorescent tube.. (; Available 6V, 41h maintenance-free battery boost variable voltage regulator T homemade needs: choice of cross-sectional area of mm 5mm of the E type ferrite core,/- -f ,. are made of high-strength wire 0 of 22mm. wound, L.,, double the backbone and about 20 smack, tap should pay attention to the end of the same name,. about 2/0-250 dish. H behaved relatively simple circuit without trial Bute, power that can work properly. close the Jf off S, E sweet tube that is able to light up, if too bright enough town to appropriately adjust the value R., C and C until the station almost brightness requirements such as E lamp is not lit, indicating that power hoof no start-up, it may be wrong end of the coil of the same name, as long as the coil L. or, at both ends of the head of Sh :) -. That BU-cho.
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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