Search RFC: |                                  
Please support my efforts by ADVERTISING!
Serving a Pleasant Blend of Yesterday,
Today, and Tomorrow™

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

Formulas | Data

Electronics | RF
Mathematics
Mechanics
Physics


Calvin & Phineas

kmblatt83@aol.com

Archive | Sitemap

Resources

Articles | Radar
Cogitations
Magazines | AI
RF Museum
Software | Videos
Radio Service
Tech Notes

Entertainment

Crosswords
Humor | Podcasts
Quotes | Quizzes
Tech Comics

Parts | Services

1000s of Listings


About RF Cafe

Software: RF Cascade Workbook | RF Symbols for Office | RF Symbols & Stencils for Visio | Espresso Workbook
Please Support My Advertisers!
Transcat | Axiom Test Equipment - RF Cafe
Aegis Power | Centric RF | RFCT
Empower RF | Reactel | SF Circuits

Alliance Test | Isotec
Windfreak Technologies Frequency Synthesizers - RF Cafe

Werbel Microwave power dividers, couplers - RF Cafe

Anatech Electronics RF & Microwave Filters - RF Cafe
Johanson Dielectrics EMI Filters - RF Cafe

Espresso Engineering Workbook

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

Maury Microwave / Holzworth HSY RF Synthesizers - RF Cafe

Thomas A. Watson: A Short Biography

minimum height spacer

Thomas A. Watson - RF CafeThomas Augustus Watson was born January 18, 1854, in Salem, Massachusetts. His practical knowledge and skills in electrical engineering and mechanics were largely self-taught, acquired through his work as a machinist and electrician. He did not attend college but learned extensively through hands-on experience. Watson began his career working at the electrical machine shop of Charles Williams in Boston. This shop was known for its work in telegraphy and electrical devices. In 1874, Alexander Graham Bell, who was experimenting with ways to transmit sound electronically, hired Watson as his assistant. Watson's technical skills were essential in turning Bell's ideas into working prototypes. He worked closely with Bell to develop and refine the necessary components. On March 10, 1876, the first successful telephone message was transmitted. Bell's famous words, "Mr. Watson, come here, I want to see you," were heard by Watson, marking the first instance of a clear, understandable voice transmission over a wire. Watson continued to work with Bell to improve and commercialize the telephone. He was involved in setting up the first telephone exchange and contributed to the early growth of the telephone industry. After his work with Bell, Watson pursued various other interests. He established a successful shipbuilding company, Fore River Ship and Engine Company, which later became a significant shipbuilding enterprise in the United States. Thomas A. Watson died on December 13, 1934. See Exploring Life: The Autobiography of Thomas A. Watson.


AI Competition: ChatGPT-Gemini-Grok 3, GabAI - RF CafeThis content was generated by primarily with the assistance of ChatGPT (OpenAI), and/or Gemini (Google), and/or Arya (GabAI), and/or Grok (x.AI), and/or DeepSeek artificial intelligence (AI) engines. Review was performed to help detect and correct any inaccuracies; however, you are encouraged to verify the information yourself if it will be used for critical applications. In all cases, multiple solicitations to the AI engine(s) was(were) used to assimilate final content. Images and external hyperlinks have also been added occasionally - especially on extensive treatises. Courts have ruled that AI-generated content is not subject to copyright restrictions, but since I modify them, everything here is protected by RF Cafe copyright. Many of the images are likewise generated and modified. Your use of this data implies an agreement to hold totally harmless Kirt Blattenberger, RF Cafe, and any and all of its assigns. Thank you. Here is Gab AI in an iFrame.

AI Technical Trustability Update

While working on an update to my RF Cafe Espresso Engineering Workbook project to add a couple calculators about FM sidebands (available soon). The good news is that AI provided excellent VBA code to generate a set of Bessel function plots. The bad news is when I asked for a table showing at which modulation indices sidebands 0 (carrier) through 5 vanish, none of the agents got it right. Some were really bad. The AI agents typically explain their reason and method correctly, then go on to produces bad results. Even after pointing out errors, subsequent results are still wrong. I do a lot of AI work and see this often, even with subscribing to professional versions. I ultimately generated the table myself. There is going to be a lot of inaccurate information out there based on unverified AI queries, so beware.

Electronics & High Tech Companies | Electronics & Tech Publications | Electronics & Tech Pioneers | Electronics & Tech Principles | Tech Standards Groups & Industry Associations | Societal Influences on Technology

Innovative Power Products (IPP) RF Combiners / Dividers - RF Cafe