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!
Amplifier Solutions Corporation (ASC) - RF Cafe

Crane Aerospace Electronics Microwave Solutions: Space Qualified Passive Products

Exodus Advanced Communications Best in Class RF Amplifier SSPAs

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

Anatech Electronics RF Microwave Filters - RF Cafe

Day in Engineering History Archive - December 24

Day in Engineering History December 24 Archive - RF CafeDecember 24

1818: James Joule, discoverer of the current/resistance/heat relationship and after whom the unit of energy is named, was born. 1865: Several veterans of the Confederate Army formed a private social club called the Ku Klux Klan (U.S. Senator Robert Byrd, of WV, was a KKK Exalted Cyclops when in his 30s). 1872: Scottish physicist William Rankine, an early investigator of thermodynamics who developed the Rankine Cycle, died. 1873: Johns Hopkins, endower of the college named after him, died. 1904: Billionaire Howard Hughes was born. 1906: Reginald Fessenden gave what is generally considered to be the first broadcast of entertainment by radio. 1947: The point-contact transistor, invented days earlier by American physicists John Bardeen, Walter H. Brattain, and William Shockley, was presented to Bell Labs management. 1963: New York International Airport was rededicated as John F. Kennedy Airport. 1966: The unmanned Russian Luna 13 spacecraft landed on Moon. 1968: The crew of the Apollo 8 spacecraft, the first manned mission to the moon, transmitted a Christmas message from lunar orbit. 1968: Astronauts on Apollo 8 became the first men to orbit the Moon, and took the famous "Earthrise" photo. 1979: The first European-built rocket, Ariane 1, successfully completed its maiden flight.

| 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.

Anatech Electronics RF Microwave Filters - RF Cafe
Windfreak Technologies Frequency Synthesizers - RF Cafe

everythingRF RF & Microwave Parts Database (h1)

Anritsu Test Equipment - RF Cafe