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!
Innovative Power Products Passive RF Products - RF Cafe

LadyBug RF Power Sensors

ConductRF Phased Matched RF Cables - 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

Crane Aerospace Electronics Microwave Solutions: Space Qualified Passive Products

Day in Engineering History Archive February 25

Day in Engineering History February 25 Archive - RF CafeBoy Scouts of America Founded  - Please click here to visit RF Cafe.February 25

1836: Samuel Colt patented his revolver. 1837: Thomas Davenport patented the first practical DC electric motor. 1870: Hiram Revels, a Republican from MS, became the first black member of the United States Senate. 1896: German chemist Ida Noddack, who co-discovered rhenium (named after the Rhine River), was born. 1901: United States Steel Corp. was incorporated by J.P. Morgan. 1908: The first tunnel under the Hudson River (Hudson & Manhattan railway tunnel) opened. 1928: The Federal Radio Commission (FRC) issued the first U.S. television license for Jenkins Laboratories. 1933: The 1st aircraft carrier, USS Ranger (CV-4), was launched. 1952: Brittan's Windscale plutonium plant began producing plutonium at Sellafield, on the Irish Sea coast. 1964: French aircraft designer Maurice Farman died. 1987: Arthur (Art) Collins, of Collins Radio Company, died.

Crane Aerospace Electronics Microwave Solutions: Space Qualified Passive Products
KR Electronics (RF Filters) - RF Cafe

Rigol DHO1000 Oscilloscope - RF Cafe

Amplifier Solutions Corporation (ASC) - RF Cafe