EARLY TRANSISTOR HISTORY AT MOTOROLA

An Interview with Ralph Greenburg

 Historic Semiconductor Devices and Applications

 

Oral History -  Ralph Greenburg (Continued) 

 

Below are links to additional Oral History material provided by Ralph Greenburg.

(Note: These articles by Ralph Greenburg originally appeared in the Motorola Retirees Club Newsletter, and are used with permission.)

 

[1] The Early Days

Ralph provides a real “hands on” recollection of the early days of Motorola transistor technology.  

 

[2] Swimming with the Sharks

A young Ralph Greenburg makes a presentation at an IRE regional conference in 1956 with Bill Shockley as one of the speakers.

 

[3] Peltier Gives Hogan the Cold Shoulder

Although Motorola was a major manufacturer of a variety of semiconductor devices, there was at least one unique semiconductor, “the Peltier cooler”, that was never a Motorola product.  Ralph’s comments on an early evaluation of this product with Lester Hogan.

 

[4]  Seminar Shenanigans

In this article, Ralph highlights a few interesting “Motorola Semiconductor Applications Seminars” that stand out from the many seminars he attended.

 

[5] Dave Adley's Electric Runabout

Although gas was inexpensive in the 1960s, one of the engineers in the Motorola Semiconductor Application group developed an “Electric Runabout” using a three-wheeled motorcycle and germanium power transistors.  Ralph describes this project and how it ended unexpectedly on the golf course. 

 

[6] FLUB-A-DUB

As solid state technology replaced vacuum tubes in many applications in the 1960s, Ralph describes an interesting and less than spectacular application.   

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Go To Greenburg Oral History, Page 12

 

 

 

Oral History – Ralph Greenburg

These Audio Links are Excerpts

from a 2008 Interview with

Ralph Greenburg.

 

Joining Motorola in 1954 

Ralph Greenburg Audio Clip #1

 

 

Early Motorola Germanium Transistors and Applications

Ralph Greenburg Audio Clip #2

 

 

The Motorola Power Transistor Story

Ralph Greenburg Audio Clip #3

 

 

Dale Kelley Develops the TO-3 Diamond Shape Power Transistor Case

Ralph Greenburg Audio Clip #4

 

 

Testing Germanium Power Transistors and Silicon Devices are Made

Ralph Greenburg Audio Clip #5

 

 

Developing the Classic Motorola Semiconductor Handbooks

Ralph Greenburg Audio Clip #6

 

 

 

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COPYRIGHT © 2008 by Jack Ward.  All Rights Reserved.  http://www.transistormuseum.com/

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