New Delhi: Remember toy major Leo Mattel being forced to withdraw Barbie dolls from the global market because they were coated with paint containing dangerous levels of lead? The Indian government is keen to similarly empower consumers against sub-standard goods. In the works are a set of tough laws which will include the critical product liability clause, making erring manufacturers and suppliers liable to pay punitive damages.
The proposals, expected to substantially overhaul existing consumer electronics goods manufacturers
Electronics
Mcintosh Electronics – An Unbiased Mcintosh Review About How They Suck
McIntosh Electronics especially amps in my opinion are of the highest quality electronics known To man! In this review I will go over a little bit of history and review some of the benefits of the products as well as some downfalls. I am her to warn you that I am a bit biased as you can tell from my opening comment, however I will not hesitate to mention the downfalls of the mighty McIntosh electronics in this brief history and product review. So enough with the hubbub and here is my McIntosh review.
McIntosh electronics is known for high quality sound ever since the beginning in 1949. These electronics have been a product that is synonymous with quality and sound production like no other product on the market. Yes they has been in the business for a very long time. And yes just about everyone knows precisely who they are. Many people believed that their quality would diminish after Clarion purchased them, however this is not what happened at all. It makes sense if you think about it – why should any company in their right minds such as Clarion shell out millions of dollars just to purchase another company with a very distinguished name like McIntosh electronics just to throw it down the tubes? Of course this would never happen. Through out McIntosh history they are still making some of the best amplifiers in the world.
Now for the dreaded downfalls of the McIntosh Electronics…Oh No!! As far as this little review goes, there is none..Ha, Ha. Just kidding. Just wanted you to get a little history and now that you understand a little bit about the McIntosh history and benefits lets look into the downfalls just a bit.
When I purchased my first amp. I have to admit that it was very disappointing. With the price that I paid I was expecting to be blown away. It seemed that my speakers just started to shake more, and the clarity of the music out the window with the troublesome bass. I was almost embarrassed to show it off to my friends but I had to…Good thing I did because my buddy said, “Dude your stereo sucks!” I was furious until he went on to explain that my cheap pioneer gear was just not the quality of equipment to carry my new Amp. So reluctantly I put the old equipment back together and waited very impatiently until I could afford some better quality gear. Long story short I eventually put a proper system together and the rest they say is history. I have listened to many different systems and to me there is none better.
So in this little McIntosh review that I have drummed up I will tell you that if you want a better product you are not going to get it, however you must realize that quality gear does not like to work well with cheap stuff that can not handle the power.
For the gifted few who truly expect to have nothing but the best, there is absolutely no substitute. If you are one of the proud who expects nothing but the best sounds without distortion, and absolutely complete control of the output of sound, then there truly is no other choice. This is all that I have to say about wily McIntosh history that is presented in this little McIntosh review.
What Are The Advantages Of Electronic Locks
Switching to electronic locks has become a great option for many people. Keeping your valuables and important paper work safe is a top priority. Electronic locks give you the peace of mind you are looking for both for the home or the small business owner. Understanding how electronic locks work will help you make your decision regarding which one to buy for your purposes.
Electronic Locks Offer Extra Security
The new trend in electronic locks is being led by large security companies who are now able to offer safety systems that include a direct connection to the local emergency support system. They go way beyond the lock and key system that has been used for years, to offer even more security, as well as, ease of use. The new systems are able to offer your more security and more protection.
These new systems offer a level of security that heretofore has not been available. Electronic locks work using an electrical current. There are a variety of systems. Some are attached directly to the lock, while others are connected to a control system located elsewhere.
The Magnetic Lock
There are two major types of electronic locks on the market. One is the magnetic lock, or more popularly referred to as a mag lock. These locks use a magnet that is placed on the door frame that engages the armature on the door. The magnet holds them tightly together. This is a very easy lock to install and it is difficult to break into. They do require electricity to work and if the power source is disrupted the lock will not work.
The Electric Strike Lock
The electric strike lock is the one most often used in the buzz in types of systems. Instead of a standard strike, an electric strike is used that is hooked into an electronic mechanism. There are a variety of types of electric strike locks. Some are easier to install than others and some will work regardless of the availability of current and some will not.
Verification before Entry
The keystone of electronic locks is that they require some form of confirmation that you are allowed to open the lock. A numerical code is used most often that requires the person entering to type in the correct sequence of numbers in order to gain access. Once the code is entered correctly the lock will disengage.
Another method of verification used is a key card or pass card that must be scanned or swiped to gain entrance. Many businesses use this type of electronic lock to enter offices, elevators and garages.
A third method that is growing in popularity is biometrics, which is a fancy name for fingerprint scanning, retinal scanning and voiceprint identification. Places where a high level of security is required most often use this type of electronic lock.
Now that you know what types of locks are available, you can begin to consider what type of lock will work best for you. These locks offer such an increased level of security for the average person; it only makes sense to replace the old fashion lock and key with an electronic lock as soon as possible.
The Advantages Of An Electronic Rain Gauge
It is not just for calculating rainfall, an electronic rain gauge is much more. There’s possibly no better way to awaken your or your kids internal weather fanatic than by having one. Your portable weather station will not be complete without one, and with regards to learning it is a great tool.
Perhaps you built your own rain gauge, or helped your children make one for a school project. How accurate do you think it is. If accuracy matters to you, you probably know an electronic rain gauge will never be beaten. They are ideal devices for a school and seats of learning and education. Taking into consideration those factors, if you are looking for a rain gauge the obvious choice is an electronic rain gauge. Hands on experience of these weather evaluation tools helps build up a better understanding of exactly how weather works and various weather patterns.
As you look at more complex models you’ll find some include additional capabilities including the ability to calculate spillage. For people who want to keep a close watch on rainfall patterns and are more concerned with rainfall patterns going haywire worldwide, this is an ideal tool to start with. Perhaps your portable weather station measures the heat index and wind speed. That’s not adequate. If you don’t determine precipitation amounts you aren’t gaining all the details you need.
Here’s another interesting and yet typical use. Many people like to use weather devices as part of their home decor. It’s for those who have the trendiest hobbies as well as those interested in home decor!
It’s also beneficial in gardening information and gives an overview of the soil pattern one could anticipate at their area. Plus understanding how much it rained is critical to decide how much water you have to add, if any. This is true for a master gardener or anyone with a little vegetable garden in their backyard.
And if you don’t want to run outside on a stormy night to gather and document your data, be sure to select one with a wireless data transmission base. Wireless bases can supply live data, directly to your living area! A tracking range of hundred feet will display accurate precipitation rates along with outdoor temperatures.
A newer model electronic rain gauge has additional features such as temperature and humidity measurement sensors. Those functions will not be necessary obviously if you are presently obtaining those measurements via some other equipment.
You can buy one of many rain measurement devices on the market, and even regular tools are good. They’re just not as precise. Regular units also will not track and record your data. If you are a serious weather nut, or simply need the information to be sure your garden or yard are receiving the proper amount of water, an electronic gauge is definitely your best selection.
Basic Laws Of Electronics
Thanks to the physical laws of electronics, circuit analysis is very procedural. This is the second entry in a tutorial in basic electronics. The first entry covered basic electronic concepts such as voltage, current, and power. This session will cover Ohm’s Law, and Kirchhoff’s Laws of voltage and current. These are the fundamental laws needed for circuit analysis and design.
Resistors and Ohm’s Law
Georg Simon Ohm was a German physicist that in 1826 experimentally determined most basic laws that relate to voltage and current for a resistor.
Ohm’s law basically states that the resistance of a component (commonly a resistor) is equal to the voltage dropped over the resistor divided by the current going through it.
This law makes it relatively easy to find one of three values: voltage across a resistance, the resistance value itself, or the current flowing through the resistance (as long as the other two values are known).
Nodes, Branches, and Loops
These three concepts must be understood for basic circuit analysis. They help determine if components are in series or parallel and if the components share the same current or have the same voltage drops.
A branch represents a single circuit component such as a resistor or voltage source.
A node is a point where two or more branches connect.
A loop is any closed path in a circuit.
Elements are in series if they exclusively share a single node. Elements that are in series share the same current.
Elements are in parallel if they are connected to the same two nodes. Elements in parallel have the same voltage across them.
Kirchhoff’s Laws
The first of Kirchhoff’s Laws is Kirchhoff’s current law (KCL). This law states that the sum of all current entering a node or enclosed area of a circuit is equal to zero. Simply put, current entering a node or area equals the current leaving the node or area.
The second of Kirchhoff’s Laws is Kirchhoff’s voltage law (KVL). This law states that the sum of all voltages around a closed path or loop is equal to zero. Simply put, the sum of voltage drops equals the sum of voltage rises.
This is found by following the loop in one direction (the direction does not matter). If the positive terminal is hit first, the voltage is added. If the negative terminal is hit first, the voltage is subtracted. Together these values will equal zero.
Once all of the voltages are found, we can start the loop anywhere we want. I find it convenient to start at the negative terminal of a main voltage source. Since we hit a negative terminal first, we subtract it. Now we simply finish the loop and add the voltages together.
This law comes in very handy for analysis.
Basic DC Analysis
By combining Kirchhoff’s voltage and current laws, basic DC circuits are relatively easy to analyze. Knowing that all voltages in a loop add up to zero and all currents entering a node, minus currents leaving a node also equals zero, most current and voltage values can be easily obtained.
If a loop contains one voltage source and multiple resistances, voltage division (eq. 1) should be used to find the value of voltage drops across the known resistances. Once the voltage across the known resistance is found, Ohm’s law (eq. 2) can be used to determine the current flowing through the resistance.
Eq.1 Voltage Division:
((voltage source in volts) (resistor of interest in ohms))/(sum of resistance in loop)
Eq.2 Ohm’s Law:
(voltage across a resistance) = (known resistance)(current flowing through resistance)
Keep in mind that resistors in series can be added to give total resistance between two nodes. The total resistance between two nodes that have resistors in parallel is found using eq. 3 below.
Eq. 3 Equivalent Resistance (Req) of Resistors in parallel:
Req = ((resistance in branch 1)(resistance in branch 2)) / (sum of resistances in both branches)
There is much more to be said about DC circuit analysis but most would go beyond the scope of this article. The purpose of this article is to give a basic understanding of the laws and concepts of basic electronics.
Other concepts that make DC circuit analysis easier are current division, mesh analysis, and nodal analysis. These techniques use the rules behind KVL, KCL, and Ohm’s Law but would require a visual example for thorough explanation.
I hope that this short tutorial has been helpful to anyone who is new to the world of electronics either as a hobbyist or as a technician trying to learn electronics repair.