Kent H. Lundberg, Ph.D


Reading is fundamental. Reading the fundamental literature is even more so.
The man who does not read good books has no advantage over the man who can't read them.
--- Mark Twain
I collect old textbooks, especially
  • Control Engineering books from the 1940s and 1950s
    See Bennett, "A Brief History of Automatic Control" IEEE Control Systems, June 1996.
  • The MIT Lincoln Laboratory Publications Series (McGraw-Hill)
  • The Bell Telephone Laboratory Series (Van Nostrand)
  • The McGraw-Hill Electrical and Electronic Engineering Series
I have complete collections of Advanced Book Exchange is a good search engine for used books.

History of Control Systems

I am a member of the IEEE Control Systems Society History Committee.

I have scanned John Miller's paper "Dependence of the input impedance of a three-electrode vacuum tube upon the load in the plate circuit." This paper is the first description of the Miller Effect.

Does anyone have a copy of A. J. Grant's root-locus paper?

Is there a better disproof of the Barkhausen Stability Criterion?

Home Movies

Not really.

  1. A simple demonstration of Cauchy's Residue Theorem.
  2. Drawing a Nyquist diagram for L(s)=1/(s+1)3 with standard D-contour.
  3. Drawing a Nyquist diagram for L(s)=(s+1)/(s2+1) with notched D-contour.
  4. Drawing a Nyquist diagram from measured frequency-response data.
  5. Transformation of Nichols plot to closed-loop Bode plot for L(s)=1/s(s+1).
  6. Transformation of Nichols plot to closed-loop Bode plot for L(s)=10/s(s+1).

Animations 1, 2, 3, and 4 produced with Matlab and ImageMagick. Animations 5 and 6 produced with Matlab, the Visualizaion Toolkit, and Zach Malchano.


The year is not 2k4.

TeX is better than Word.

Your browser is broken.

Crosses never connect, connections never cross.

Other Links

I've written a lot of stupid web pages:

Kent H Lundberg (email address)
Last updated 31 October 2010.