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!
Temwell Filters

Innovative Power Products Passive RF Products - RF Cafe

Rigol DHO1000 Oscilloscope - 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

Amplifier Solutions Corporation (ASC) - RF Cafe

Day in Engineering History Archive - June 27

Day in Engineering History June 27 Archive - RF CafeJune 27

Happy Birthday to Augustus De Morgan. - Please click here to visit RF Cafe.1806: Augustus De Morgan, who formulated De Morgan's laws for Boolean algebra, was born. 1901: Merle Tuve who first used pulsed radio waves to explore the ionosphere, was born. 1932: U.S. Bureau of Standards scientist Louis Austin, who pioneered long-range radio broadcasts, died. 1941: The BBC began using the first four notes of Beethoven's Fifth Symphony as a morale-boosting motif (in Morse Code, "dit-dit-dit dahhh" stands for the letter "V" as in "Victory"). 1950: President Truman ordered the Air Force and Navy into the Korean conflict. 1954: The world's first atomic power station began producing electricity in Obninsk, USSR. 1962: Ross Perot began Electronic Data Systems (EDS). 1976: Palestinian extremists hijacked an Air France plane in Greece with 246 passengers and 12 crew onboard. 1978: The first pen with truly erasable ink, the Gillette Eraser Mate, was invented. 1983: Maxie Anderson, who co-piloted the first transatlantic balloon flight on the Double Eagle II, died.

| 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.

Amplifier Solutions Corporation (ASC) - RF Cafe
everythingRF RF & Microwave Parts Database (h1)

Innovative Power Products Passive RF Products - RF Cafe

LadyBug RF Power Sensors