Search RFCafe.com                           
      More Than 17,000 Unique Pages
Please support me by ADVERTISING!
Serving a Pleasant Blend of Yesterday, Today, and Tomorrow™ Please Support My Advertisers!
   Formulas & Data
Electronics | RF
Mathematics
Mechanics | Physics
     AI-Generated
     Technical Data
Pioneers | Society
Companies | Parts
Principles | Assns


 About | Sitemap
Homepage Archive
        Resources
Articles, Forums Calculators, Radar
Magazines, Museum
Radio Service Data
Software, Videos
     Entertainment
Crosswords, Humor Cogitations, Podcast
Quotes, Quizzes
   Parts & Services
1000s of Listings
 Vintage Magazines
Electronics World
Popular Electronics
Radio & TV News
QST | Pop Science
Popular Mechanics
Radio-Craft
Radio-Electronics
Short Wave Craft
Electronics | OFA
Saturday Eve Post

Software: RF Cascade Workbook
RF Stencils Visio | RF Symbols Visio
RF Symbols Office | Cafe Press
Espresso Engineering Workbook

Aegis Power  |  Alliance Test
Centric RF  |  Empower RF
ISOTEC  |  Reactel  |  RFCT
San Fran Circuits

Windfreak Technologies Frequency Synthesizers - RF Cafe



Cafe Press

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

PCB Directory (Manufacturers)

Day in Engineering History Archive March 8

Day in Engineering History March 8 Archive - RF CafeMarch 8

Voyager Discovers Active Volcanoes on Io - RF Cafe1618: Johann Kepler formulated his Third Law of Planetary Motion. 1854: U.S. Commodore Matthew Perry made his second landing in Japan, and within a month had concluded a treaty with the Japanese. 1862: The Confederate ironclad CSS Virginia (built upon the USS Merrimack's hull) was launched. 1879: Otto Hahn, co-discoverer of nuclear fission, was born. 1917: Count Ferdinand von Zeppelin, of airship fame, died. 1946: Frederick Lanchester, automobile and aeronautics pioneer who built the first British petrol automobile, died. 1965: The United States landed about 3,500 Marines in South Vietnam - the first of many. 1974: The newly renamed Charles de Gaulle International Airport began service. 1979: Volcanoes - the first active in the solar system other than Earth - on Io were discovered by Voyager 1. 1983: President Ronald Reagan made his famous "Evil Empire" speech. 

| 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.

PCB Directory (Manufacturers)
withwave microwave devices - RF Cafe

Temwell Filters

Crane Aerospace Electronics Microwave Solutions