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August 7, 2010 / consort3

741 and inventions

Updated 14 June 2016

Just found out that the inventor of the 741 op-amp was a Brit, Dave Fullagar

http://edn.com/electronics-news/4326905/Voices-Dave-Fullagar-analog-IC-designer-and-entrepreneur

Dave was working for Fairchild in the US at the time, so is the invention American or British?

Design analysis of the 741

http://www.righto.com/2015/10/inside-ubiquitous-741-op-amp-circuits.html

More on the design and use of the 741

http://web.mit.edu/klund/www/papers/ACC04_opcomp.pdf

Another British invention from the same era the Liquid crystal display was by this guy:

http://en.wikipedia.org/wiki/George_William_Gray

Who was working with RRE  Malvern.  Actually the device had been invented by Williams and Heilmeyer at RCA labs, however it needed Gray’s expertise to make an acceptable device. But in typical British fashion we did not develop it commercially,  It was the Japanese who realised the value of the invention. Interesting timeline on LCDs. I was shown a working device in 1970 when I started in the electronics business but it wasn’t till 1974 that LCD wristwatches and calculators appeared.  Williams had started in 1962 so a long time to gestation! Also the switch from blue sky research to realising there were applications for liquid crystals. In 1970 the LCD would not do the temperature range required. More here on how RCA let it slip through their fingers, they do not mention George Gray!

http://spectrum.ieee.org/consumer-electronics/audiovideo/how-rca-lost-the-lcd

More on Heilmeyer here: (they still do not mention Gray!

http://forum.eetasia.com/BLOG_ARTICLE_15193.HTM

Uk goverment research 1664-2008 time line showing LCDs

http://www.ploughshareinnovations.com/uploads/files/MoD_ST_Full_History.pdf

This paper is a very nice summary of LCD development

http://home.physics.leidenuniv.nl/~eliel/teaching/fmt/kawamoto-history_of_lcds-procieee-2002.pdf

Quote: “We now recognize that America’s strength was in its speed in creating new ideas and then demonstrating their feasibility. Europe’s strength was in fundamental science and synthesizing basic materials. Japan’s strength was in perfecting the implementation and moving it to mass production.” I suspect without all 3 it would not have happened.

Another British invention from an alliterative professor, Alf Adams, is the strained quantum well laser. Again not developed by the British but by Philips in Holland

http://www.bbc.co.uk/programmes/b03ynf4y

Yet another British electro-optical breakthrough by yet another alliterative academic, Professor Payne

http://www.ingenia.org.uk/Content/ingenia/issues/issue38/Issue38_Profile.pdf

Another British invention, the EM drive by Roger Shawyer

http://www.sciencealert.com/new-paper-claims-that-the-em-drive-doesn-t-defy-newton-s-3rd-law-after-all

Back to chip design geniuses and the creator of the TDA2030 Bruno Murari

http://www.nytimes.com/1998/07/27/business/in-milan-a-subtle-artisan-finds-a-medium-in-new-analog-chips.html

Showed my daughter this blog and she thought it was geeky but not as geeky as this: http://www.guardian.co.uk/technology/2010/aug/08/smartphone-worship-media-obsession-naughton

We are all geeks now

http://www.nytimes.com/2014/09/14/sunday-review/were-all-nerds-now.html

Story about another great engineer Bob Widlar

http://edn.com/electronics-blogs/anablog/4311277/Bob-Widlar-cherry-bombs-the-intercom-speaker-item-2

WidlarPosterForDigitalGuys_small

*Unusual tribute to another great analogue engineer Bob Pease, takes me back to hand laid out PCBs

http://www.boldport.com/blog/2016/2/21/boldport-club-project-1

Remembrances of another engineer the late great Jim Williams

http://www.edn.com/design/analog/4442194/1/Remembering-Jim-Williams–5-years-later

Another useful electronics blog:

http://ludens.cl/Electron/Electron.html

Another Analogue legend, “I’m an artist and I paint silicon.”

http://www.electronicsweekly.com/Articles/18/10/2012/54803/why-were-diferent-by-bob-dobkin.htm Back to where we started analog IC design, a good website:

http://www.idea2ic.com/

Reverse engineering the TL431 the most common chip you have never heard of: Great blog site BTW http://www.righto.com/2014/05/reverse-engineering-tl431-most-common.html

Dave Fullagar moved to Silicon Valley in 1966 this guy moved there in 2013:

http://www.theguardian.com/technology/2014/nov/14/ready-steady-startup-silicon-valley

If you are an engineer watch out for VCs

http://spectrum.ieee.org/at-work/innovation/an-engineers-view-of-venture-capitalists

Moores Law is 50 years old

http://forum.eetasia.com/BLOG_ARTICLE_22374.HTM

More on Moore

http://www.economist.com/news/technology-quarterly/21662644-chipmaking-moores-law-may-be-running-out-steam-chip-costs-will-continue

https://www.technologyreview.com/s/601206/moores-laws-ultraviolet-savior-is-finally-ready/

 

 

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