From Professor Irving Kalet….

This is a post written by Professor Kalet: Analog Modulation-Back to the Future? Or was Armstrong’s Frequency Modulation the “Last Word” in Analog Modulation In recent times there has been a renewed interest in Edwin Armstrong, his work, his career and his life. This “blog” is probably the best evidence of that renewed interest. A […]

Read More…

The Regenerative Circuit

Listening to the radio now, as I do quite often, I never would have imagined the difficulties that plagued it in the past. Although not yet around to experience early radio listening first hand, I have read enough to understand just how close one would have had to have been to the speaker. In fact, […]

Read More…

Vacuum Tube?

A vacuum tube from the Armstrong collection Most people today have heard of Moore’s Law and the explosion of the number of transistors in modern technology, but if you are of the younger generation, the word “vacuum tube” sparks only faint recognition.  In fact, some younger readers may not recognize the term at all.  But […]

Read More…

Welcome to the Major Armstrong blog

W.H. Lighty’s letter of admiration stems from his lengthy career at the University of Wisconsin…continued     This significant and historically rich collection has been open for use here now for many years. To any who may have searched within it, this will come as some welcome news: thanks to the Armstrong Memorial Research Foundation and generous grants from the IEEE […]

Read More…