Analog Devices, History of OpAmps

[amdx]

I ran across this History of OpAmps.
Thought some might find it interesting.
From tubes to ~ 1990.



http://www.analog.com/library/analogDialogue/archives/39-05/Web_ChH_final.pdf

Mikek




PS. I was looking for info on a Analog devices 118A that I have.
Closest I came was the 118.

http://www.analog.com/library/analogDialogue/archives/39-05/Web_ChH_final.pdf

Page 30

 

[Robert Baer]

I ran across this History of OpAmps.
Thought some might find it interesting.
From tubes to ~ 1990.



http://www.analog.com/library/analogDialogue/archives/39-05/Web_ChH_final.pdf


Mikek




PS. I was looking for info on a Analog devices 118A that I have.
Closest I came was the 118.

http://www.analog.com/library/analogDialogue/archives/39-05/Web_ChH_final.pdf


Page 30

The historical origins are rather short and incomplete.
Fleming is mentioned, but NOT Cy Ellwell (the Baby Bird has no clue..).

 

[MrTallyman]

The historical origins are rather short and incomplete.
Fleming is mentioned, but NOT Cy Ellwell (the Baby Bird has no clue..).

I am quite sure that advances have been made since '91.

 

[Robert Baer]

I am quite sure that advances have been made since '91.

...and that comment relates to Cy Ellwell HOW?