Electronics World articles Popular Electronics articles QST articles Radio & TV News articles Radio-Craft articles Radio-Electronics articles Short Wave Craft articles Wireless World articles Google Search of RF Cafe website Sitemap Electronics Equations Mathematics Equations Equations physics Manufacturers & distributors LinkedIn Crosswords Engineering Humor Kirt's Cogitations RF Engineering Quizzes Notable Quotes Calculators Education Engineering Magazine Articles Engineering software RF Cafe Archives Magazine Sponsor RF Cafe Sponsor Links Saturday Evening Post NEETS EW Radar Handbook Microwave Museum About RF Cafe Aegis Power Systems Alliance Test Equipment Centric RF Empower RF ISOTEC Reactel RF Connector Technology San Francisco Circuits Anritsu Amplifier Solutions Anatech Electronics Axiom Test Equipment Conduct RF Copper Mountain Technologies Exodus Advanced Communications Innovative Power Products KR Filters LadyBug Technologies Rigol TotalTemp Technologies Werbel Microwave Windfreak Technologies Wireless Telecom Group Withwave RF Cafe Software Resources Vintage Magazines RF Cafe Software WhoIs entry for RF Cafe.com Thank you for visiting RF Cafe!
Windfreak Technologies Frequency Synthesizers - RF Cafe

Innovative Power Products Passive RF Products - RF Cafe

Anatech Electronics RF Microwave Filters - RF Cafe

Please Support RF Cafe by purchasing my  ridiculously low-priced products, all of which I created.

RF Cascade Workbook for Excel

RF & Electronics Symbols for Visio

RF & Electronics Symbols for Office

RF & Electronics Stencils for Visio

RF Workbench

T-Shirts, Mugs, Cups, Ball Caps, Mouse Pads

These Are Available for Free

Espresso Engineering Workbook™

Smith Chart™ for Excel

Windfreak Technologies Frequency Synthesizers - RF Cafe

Day in Engineering History Archive - December 31

Day in Engineering History December 31 Archive - RF CafeLast Calvin and Hobbes comic strip - RF CafeDecember 31

1691: Irish chemist Robert Boyle, of Boyles gas law fame, died. 1719: English astronomer John Flamsteed, who established the Greenwich Observatory, died. 1857: Britain's Queen Victoria decided to make Ottawa the capital of Canada. 1879: Thomas Edison first publicly demonstrated his electric incandescent light in Menlo Park, NJ. 1905: Aleksandr Popov, considered in Russia to be the inventor of radio, died. 1935: A patent was issued for the game of Monopoly, assigned to Parker Brothers. 1940: French biophysicist Jacques-Arsène d' Arsonval, who invented the reflecting moving-coil galvanometers used to measure weak electric currents, died. 1974: Private U.S. citizens were allowed to buy and own gold in bullion for the first time in more than 40 years (high of $875/oz. in 1980, currently around $600/oz.). 1991: The USSR was officially dissolved. 1995: The final Calvin and Hobbes comic strip was published - reruns are not allowed. 1997: Intel cut price of Pentium II-233 MHz from $401 to $268. 2004: Taipei 101, the world's tallest skyscraper, was fully opened.

| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |

Note: These historical tidbits have been collected from various sources, mostly on the Internet. As detailed in this article, there is a lot of wrong information that is repeated hundreds of times because most websites do not validate with authoritative sources. On RF Cafe, events with hyperlinks have been verified. Many years ago, I began commemorating the birthdays of notable people and events with special RF Cafe logos. Where available, I like to use images from postage stamps from the country where the person or event occurred. Images used in the logos are often from open source websites like Wikipedia, and are specifically credited with a hyperlink back to the source where possible. Fair Use laws permit small samples of copyrighted content.

Windfreak Technologies Frequency Synthesizers - RF Cafe
RF Cascade Workbook 2018 by RF Cafe

Copper Mountain Technologies (VNA) - RF Cafe

Crane Aerospace Electronics Microwave Solutions: Space Qualified Passive Products