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image of the Electronic Associates Incorporated, Model TR-48
4 feet wide
Weighs 450 pounds

image of the Electronic Associates Incorporated, Model TR-20 Electronic Associates, Inc.

Our Generous Donors

The generosity of those who have donated their valued analog computers, peripherals and documents has allowed us to save these artifacts for future study. Each of these donors has become a vital part of the second largest collection of analog computers in the world.
Analog Computer:
Electronic Associates Incorporated (EAI)
Donated by the estate of Jack Arnold Smith of Auburn, Washington, USA
July 2011
Our special thanks to David Smith, Jack's son, for arranging the donation and to Mrs. Smith for patiently storing the TR-48 in her home all these years! Their donation included several manuals and additional patchboard cables.
Analog Computer:
Electronic Associates Incorporated (EAI)
TR-10 and TR-20
Donated by Dr. Mark Woyshville MD, of Cleveland, Ohio, USA
June 2011
Dr. Woyshville used the TR-10 and TR-20 in his medical research. He kindly donated both computers plus manuals, patchboards and an Artonix Model 1613 three-axes oscilloscope among other items.
Analog Computer:
Electronic Associates Incorporated (EAI)
Donated by Richard Hirsch of Baltimore, Maryland, USA
June 2010
Richard is a Life Fellow member of The American Society of Mechanical Engineers and a member of the Executive Board of the Baltimore Section. Our thanks to Richard's granddaughter for coming along with Richard to help deliver the equipment right to our door. Richard donated a complete TR-20 setup with an EAI Digital Voltmeter, an EAI oscilloscope, a Hewlett-Packard Model 322 two channel strip-chart recorder, many manuals, and a very organized small cabinet of extra parts among other items.
Analog Computer Materials:
Remington-Rand, UNIVAC, etc.
Donated by Mark Greenia of Roseville, California, USA
April 2010
Mark donated several computer related items including some from the 1940's. His donations included two manuals for Remington Punch Card Accounting machine (both manuals were printed before I was born which makes them very, very old). He also donated a rare Remington-Rand UNIVAC tube from 1949, a UNIVAC punch card (the early kind with the round holes) and a UNIVAC magnetic tape on its original reel among other items.

Copyright © 2009 by Dr. Michael Pearson, All Rights Reserved.