RF Cafe Software

RF Cascade Workbook 2005 - RF Cafe
RF Cascade Workbook

Calculator Workbook
RF Workbench
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Smith Chart™ for Excel
RF & EE Symbols Word
RF Stencils for Visio

About RF Cafe

Kirt Blattenberger - RF Cafe WebmasterCopyright
1996 - 2016
Webmaster:
Kirt Blattenberger,
 BSEE - KB3UON

RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The Internet was still largely an unknown entity at the time and not much was available in the form of WYSIWYG ...

All trademarks, copyrights, patents, and other rights of ownership to images and text used on the RF Cafe website are hereby acknowledged.

My Hobby Website:
 AirplanesAndRockets.com

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Electronics World Cover,TOC,and list of posted Popular Electronics articles QST Radio & TV News Radio-Craft Radio-Electronics Short Wave Craft Wireless World About RF Cafe RF Cafe Homepage RF Cafe in Morse Code Google Search of RF Cafe website Sitemap Electronics Equations Mathematics Equations Equations physics Manufacturers & distributors Engineer Jobs Twitter LinkedIn Crosswords Engineering Humor Kirt's Cogitations Engineering Event Calendar RF Engineering Quizzes AN/MPN-14 Radar 5CCG Notable Quotes App Notes Calculators Education Magazines Software,T-Shirts,Coffee Mugs Articles - submitted by RF Cafe visitors Simulators Technical Writings RF Cafe Archives Test Notes RF Cascade Workbook RF Stencils for Visio Shapes for Word Thank you for visiting RF Cafe!

Day in Engineering History Archive - January 24

January 24

Apple Began Selling the Macintosh Computer - Please click here to visit RF Cafe.1848: James Marshall discovered a gold nugget at Sutter's Mill in northern CA, which led to the gold rush of ´49. 1888: Ernst Heinkel, inventor of the first jet-powered aircraft, was born. 1916: The U.S. Supreme Court ruled that income tax was unconstitutional. 1935: Beer was first sold in cans, by Krueger Brewing Co. 1948: IBM dedicated its "SSEC," the Selective Sequence Electronic Calculator, that handled both data and instructions using electronic circuits made with 13,500 vacuum tubes and 21,000 relays. 1950: The microwave oven was patented by Percy Spencer. 1961: Albert Gilbert, inventor of the Erector Set, died. 1965: Sir Winston Churchill died in London at age 90. 1978: Cosmos 954, a nuclear-powered Soviet satellite plunged through Earth's atmosphere and disintegrated scattering radioactive debris over parts of Canada's Northwest Territory. 1984: Apple Computer released the first model of the Macintosh. 1986: The Voyager 2 space probe swept past Uranus, coming within 50,679 miles of the seventh planet of the solar system. 2003: The United States Department of Homeland Security (DHS) was formally activated.

| 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.
Please submit significant historical events and dates for inclusion in these lists. I will be glad to include your name and birthday. Please do not submit your death date ;-) A couple 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.