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!
Copper Mountain Technologies (VNA) - RF Cafe

Crane Aerospace Electronics Microwave Solutions: Space Qualified Passive Products

withwave microwave devices - 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

Innovative Power Products Resistors Terminations

Day in Engineering History Archive - June 23

Day in Engineering History June 23 Archive - RF CafeJune 23

1891: Wilhelm Weber, after whom the unit of magnetic flux is named, died. 1912: Alan Turing, mathematician and code-breaking pioneer at Bletchley Park, was born. 1931: Aviators Wiley Post and Harold Gatty took off from New York on the first flight around the world in a single-engine plane. 1938: The Civil Aeronautics Authority (CAA, later the FAA) was established. 1960: The first solar powered, 2-way radio, coast-to-coast conversation was made by the U.S. Army Signal Corps, using 20-foot square panels consisting of 7,800 individual solar cells. 1961: An X-15 airplane became the first to exceed Mach 5, at Edwards AFB, CA. 1964: Jack Kilby issued patent for first integrated circuit. 1982: A record low temperature of -117 ºF was recorded at the South Pole. 1995: Dr. Jonas Salk, inventor of the polio vaccine, died. 1998: President Clinton called for U.N. sanctions against Iraq for WMDs reportedly found. 2008: Carl Eilers, the "Father of FM and TV Stereo," 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.

Innovative Power Products Resistors Terminations
Werbel Microwave (power dividers, couplers)

Cafe Press

Exodus Advanced Communications Best in Class RF Amplifier SSPAs