The Hub of the Indian Electronics Industry - Meet over 800 Exhibitors from World over Electronica India 2009 Productronica India 20098,9,10,11, September 2009 ,Bangalore International Exhibition Centre (BIEC), Bangalore India.Country Pavilions: Germany,China,USA,UK more than 25 countries.Free Entry To ExhibitionFor more information Email: info@mmi-india.inwww.electronica-india.comwww.productronica-india....
Simple Battery
Following the below procedure you can make a simple battery ,by just using water as a electrolyte.
Things needed:
Water
Zinc plate
Carbon rod
Waste battery
This simple battery needs two electrodes Zinc and Carbon .These electrodes can be easily obtained from junk batteries.
How to remove carbon rod:
First of all remove the external metal covering of the battery carefully.Now the layer covering the battery is nothing...
Getting Laser Diode:
How to remove laser diode from a junk Dvd player , this is the most common question.Finally the answer in revealed below.
Below is the picture of laser lens set acquired from a junk Dvd player.
At the center is lens ,surrounded by focus adjustment coils.But our point of focus is laser diode. For your convenience i have removed the laser diode separately.
Once you have located the laser diode you can remove...
Recently I came across a washing machine ,the problem was it was not draining the water after spinning. It was an Whirlpool automatic washing machine. I opened the back cover gained access to the drain hose .
Actually draining of water will be actuated by pulling the piston out.It is done by a motor gear assembly ,which pulls the string connected to the drain hose. I pulled the string manually water gushed out immediately. So the problem...
It is said that Jupiter and Neptune comes in a straight line with Earth.So that Jupiter can be viewed directly by naked eye, by around 7:30 pm on 17th August 2009 .
Since Neptune is some what farther from Earth , it can be viewed by telescope or binocular etc...
What is the best way to keep from spreading the virus through coughing or sneezing?
If you are sick limit your contact with other people as much as possible.Do not go to work stay at home or in your hotel room.Cover your mouth and nose with a mask when coughing or sneezing.It may prevent those around you from getting sick.Put your used tissue in the waste basket.If you do not have a mask cover your cough or sneeze whenever you cough or sneeze.Then clean your hands every time you cough or sneeze.
For what purposes can antiviral...
WHAT IS SWINE FLU?
Swine Influenza ( swine flu) is a respiratory disease of pigs caused by type A influenza viruses (H1N1 subtype) that causes regular outbreaks in pigs. People do not normally get swine flu ,but human infections can and do happen.
Swine flu viruses have been reported to spread from person to person, but in the past ,this transmission was limited and not sustained beyond three people.
SIGNS AND SYMPTOMS
The symptoms of swine flu in people are similar to the symptoms of regular human flu and include
Fever
Sore...
Many junk electronics gadgets can be used to get some useful spare parts and some times amplifier circuit,transmitter,receiver etc.,
I got a junk CD player a few weeks back i opened it and took some useful things some motors,laser diode, IR receiver, and finally a Dual channel Audio amplifier.
The IC was CD6283CS and its specifications are as follows
4.6 W x 2 dual-channel audio power amplifier
Model: CD6283CS
Product Name: Dual-channel...
The Perseids are a prolific meteor shower associated with the comet Swift-Tuttle. The Perseids are so called because the point they appear to come from, called the radiant, lies in the constellation Perseus.
Meteor showers occur when Earth moves through a meteor stream. The stream in this case is called the Perseid cloud and it stretches along the orbit of the Comet Swift-Tuttle. The cloud consists of particles ejected by the comet as...
This was the message I got few months ago whenever I started my PC , sometimes suddenly my PC will go off and When I restart again the same message appeared.
I thought I would have over used my Computer but thats not the problem I know, because system can be used continuously throughout the day .
I removed the cooling fan and heat sink placed directly above the processor and cleaned it.
Fan was working good, heat sink was cleaned and now its free from dust. I cleaned the heat sink with cycle pump. Now assembled everything...
Troubleshooting Whirlpool Auto sparkle Washing Machine :
The problem with the washing machine was over flowing of water . It has a water level controller with options namely Extra low, low, Medium , High and reset.
High water level is selected for washing more clothes , that is when the tub is full .
But the problem is whenever the water level is selected to High , the starts filling even after the level is reached and it...
In my previous post I shared my experience about my UPS now I have two more devices to share with you all. One thing is Electronic Choke and the other Emergency lamp.
Electronic Fluorescent lamp choke:
I got a tube light with no response ,from one of my customer .His doubt was lightning. I opened the electronic choke and his doubt was right it was affected by lightning. I just had a look at the PCB, line to a small transformer...
Like many other guys me too very much interested towards electronics and I like troubleshooting them. Here I am going to share some of my experience regarding electronic gadgets affected by lightning .
Normally a device gets affected by lightning when its power chord is just plugged in , doesn't matter its switched on or not, just a plugged chord is enough to get affected by lightning.
First thing I am going to share is about...
Give free food with one click. Visit http://www.bhookh.com/
1.
Hunger remains the No.1 cause of death in the world. Aids, Cancer etc. follow.
2.
There are 820 million chronically hungry people in the world.
...
Electrical impulses in the heart originate in the sinoatrial node and travel through the intrinsic conducting system to the heart muscle.The impulses stimulate the myocardial muscle fibres to contract and thus induce systole. The electrical waves can be measured at selectively placed electrodes (electrical contacts) on the skin.
These small electrical signals can be measured using a multimeter. Adjusting the multimeter to 200 or 2000mv...
Government of India has an online Grievance forum at http://www.pgportal.gov.in
Can you imagine this is happening in INDIA ?
The govt. wants people to use this tool to highlight the problems they faced while dealing with Government officials or departments like
1) Railways
2) Posts
3) Telecom (incl. Bharat Sanchar Nigam Limited (BSNL) & Mahanagar Telephone Nigam Limited (MTNL )
4) Urban Development ( Delhi Development Authority (DDA) , Land & Development Office (L&DO)...
A crystal radio is the distilled essence of a radio. It has very few parts, it needs no batteries or other power source, and it can be built in a short time out of things you can find around the house. The reason a crystal radio does not need any batteries is the amazing capabilities of the human ear. The ear is extremely sensitive to very faint sounds. The crystal radio uses only the energy of the radio waves...
