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Day in Engineering History Archive - January 17

| 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.

January 17

Happy Birthday Benjamin Franklin! - Please click here to visit RF Cafe.

1706: Benjamin Franklin was born in Boston, MA. 1871: Andrew Hallidie received a patent for his cable car system. 1882: Leroy Firman received a patent for the telephone switchboard. 1886: American airplane designer Glenn L. Martin was born. 1955: The submarine Nautilus began the first nuclear-powered test voyage. 1994: A 6.7 magnitude earthquake struck Southern California, killing at least 61 people and causing $20 billion worth of damage. 1991: Operation Desert Shield became Operation Desert Storm as the air war phase began. 1995: 5,372 people were killed when a 7.2 magnitude earthquake devastated Kobe, Japan. 2001: Tom Kilburn, who was the first to succeed in storing and then retrieving a bit of data via software, died.


RF Cafe Software

RF Cascade Workbook
RF Cascade Workbook is a very extensive system cascaded component Excel workbook that includes the standard Gain, NF, IP2, IP3, Psat calculations, input & output VSWR, noise BW, min/max tolerance, DC power cauculations, graphing of all RF parameters, and has a graphical block diagram tool. An extensive User's Guide is also included. - Only $35.
RF system analysis including
frequency conversion & filters

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

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