Tuesday, June 30, 2009

The First Transistor

In 1947, John Bardeen, Walter Brattain and William Shockley, working at Bell Telephone Laboratories, were trying to understand the nature of the electrons at the interface between a metal and a semiconductor. They realized that by making two point contacts very close to one another, they could make a three terminal device - the first "point contact" transistor.
They quickly made a few of these transistors and connected them with some other components to make an audio amplifier. This audio amplifier was shown to chief executives at Bell Telephone Company, who were very impressed that it didn't need time to "warm up" (like the heaters in vacuum tube circuits). They immediately realized the power of this new technology.
This invention was the spark that ignited a huge research effort in solid state electronics. Bardeen and Brattain received the Nobel Prize in Physics, 1956, together with William Shockley, "for their researches on semiconductors and their discovery of the transistor effect." Shockley had developed a so-called junction transistor, which was built on thin slices of different types of semiconductor material pressed together. The junction transistor was easier to understand theoretically, and could be manufactured more reliably.

Friday, June 26, 2009

Facts Everyone Should Know About Lead

Why Lead Free?

Lead is a naturally occurring bluish-gray metal. Much of it comes from human activities including burning fossil fuels, mining, and manufacturing. Lead is dangerous because it disrupts the functioning of almost every brain neurotransmitter. Since the body mistakes lead for calcium, it interferes with nerve impulse transmission, heart activity and blood clotting. It has therefore been associated with diseases that affect the cardiovascular, respiratory, reproductive, and nervous systems. A person may experience the following effects depending on the amount of exposure:

Acute Exposure: Headache, nausea, vomiting, abdominal spasms, fatigue, sleep disturbances, weight loss, anemia, kidney damage, and pain in arms, legs, and joints

Chronic Exposure: Impaired functions of the nervous system, kidney and brain damage, and slow mental development in children
You can protect yourself, your family, your home, and your world from the toxic effects of lead. Use only Lead-Free products.

Wednesday, December 17, 2008

Choose The Best Video Game

Video games packs with so much fun but care must be given because it can consume all of our precious time. Video games today, bring us to the next level of entertainment because of the development new technology such as portability, wireless controls, high definition video and packed with high capacity hard drives. The three major manufacturers of video games are Microsoft, Sony and Nintendo.

The Xbox 360 is the product of Microsoft, Playstation 3 (PSP 3) for Sony and Wii for Nintendo. The graphics quality and realism for Xbox 360 and PSP 3 are equally excellent but Xbox has larger library of games with removable hard drive. The PSP 3 can play Blu-ray disk. It includes Wi-Fi with Internet capabilities having a built-in browser. Nintendo chose not to compete with the two top companies, instead, they focus on the Wii Remote which a unique motion-sensitive controller that gets players off the couch, waving the controller around in the air.

Tuesday, November 25, 2008

Davao's Upcoming Big Event!!!

The Institute of Electronics Engineers of the Phils will be having its 58th IECEP National Convention on December 4-6, 2008 to be held in Grand Men Seng Hotel with a theme "Electronics Technology: Tool for Global Weather Watch".

In view of this, we are inviting all electronics engineers and electronics technicians to attend the said convention. The event will showcase new products, innovations, researches, and technologies from leading service providers, manufacturers, distributors, innovators and researchers from all over the country.

Saturday, October 11, 2008

New Professional Electronics Engineers

Professional Electronics Engineer Examination Results Released

Saturday, October 11, 2008


The Professional Regulation Commission (PRC) announces that 38 passed the Professional Electronics Engineer Examination given by the Board of Electronics Engineering in Manila this October 2008.

The members of the Board of Electronics Engineering are Engr. Sylvia Icasiano-Marcelo, Chairman; Engr. Nestor C. Dacanay and Engr. Joel B. Bajador, Members.

Following is the list of Successful Applicants:

ABANCE, BRUCE LEUNG
ACOSTA, REYNALDO INOVERO
AQUINO, MA THERESA POSADAS
AQUINO, ROLANDO MOSES FONTANILLA
BARRETTO, ARMANDO VICTOLERO
BAUTISTA, MICHELE EUGENIO
BITOON, AL REY LAGAT
CABALUNA, FLORDELIS PEDARSE
CABATINGAN, RAMIL MEDEL
CASTILLO, CHERYL MARIE GUNDAYAO
CHIONG, NOEL TIONGSON
CINCHEZ, MANUEL MOLINA
DAWEG, LIGAYA VILLEGAS
FERNANDO, MELANIE ABOBO
FLORES, JACQUELINE CRUZ
FLORES, ROBERT RANDY CENZON
GARCIA, AMANTE RIMANDO
LUPOY, AGUSTIN GALENDEZ
MAGTORTOR, HANSEL MAƑEGO
MALLARE, FERCONCIO DE LA CRUZ
MATALINES, JAY ARVIN SAREGUMBA
PACOT, DENIS CATARMAN
PADRE, ANTONIO EDWARD EDA
PIDOR, RAYMOND JOROLAN
RAMOS, RAMIL NACINO
RILLO, JOAQUIN JR RONCALES
RODRIGO, AVEL CARBONEL
ROJAS, WILLIAM BONA
ROSALES, GIL MAYO
SARAGENA, HONORIOLITO ECHAVEZ
SOLIVEN, ROBILLO APILADO
TACAY, JERRY SUCAT
TADLAS, ELISEO GAMIL
TALUSIG, LEAH ANNOGUI
TAMANIA, ALEJANDRINO GALOSO
TAN, SAMUEL LEE
UY, MATTHEW GANDHI PAYE
WALCIEN, IMELDA REODIQUE

Monday, October 6, 2008

Whatch Your Favorite Shows

Direct TV is fast emerging satellite television system. Why is it that this new system is advantageous compared to cable television? Direct TV is a digital transmission system where you have a lot of choices of movies, music, sports and internationals channels while in a cable system, the channels are limited to what they offer.

Since Direct TV programming is digital in nature, all shows are 100% digital quality picture and sound. One advantage of digital programming is that there is a feature in their system where you can digitally record videos. So no worry if you miss the favorite movies or programs, the recording is one touch of a button.

Direct Sat TV has a variety of packages that will serve the needs of its costumers for the right price.

Saturday, October 4, 2008

Holiday Skiing

When planning to have a vacation in North America, Whistler Accommodation is the best. This a company whom dedication is focused on arranging the holiday you dreamed of.

If you wish that by the time you go out of the door, you can ski right away, then Whistler lodging can make them come true. They have a lot of choices of ski-in, ski-out townhomes and Whistler condo rental. Their cozy and luxurious log apartments are all equipped with fireplaces, hot tubs and steam showers to give you comfort and enjoy the stay.

The image above is a ski-in, ski out home named, Cedar Ridge 17, which has four (4) bedrooms with two (2) bathrooms and can accommodate ten (10) people. This is best for family outing or friends reunion or even for company getaways.