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We have moved our collection to the Pennsylvania Computer Museum

Including our newest addition, a 1936 Analog Computer (the RangeKeeper) that
controlled the big guns on the USS St. Louis. The St. Louis was the first ship
to make it out of Pearl Harbor on December 7 1941!

Below is a list of the analog computers in our collection.
  1. AMF Educational Computer Model 665-C
  2. AMF Educational Computer Model 775-A
  3. Analog Training Computer ATC-610 (EAI)
  4. Beckman ElectroComp Electric Heating Computer
  5. Beckman Energy Savings Computer
  6. Beckman Solid State Fuel Cost Computer
  7. Calculo Analog Computer
  8. CES Ed-Lab 650
  9. Comdyna GP-6
  10. Comdyna GP-10
  11. Donner 3500
  12. Electronic Associates TR-10
  13. Electronic Associates TR-10 Model II
  14. Electronic Associates TR-20
  15. Electronic Associates TR-48
  16. Electronic Associates TR-48
  17. Electronic Associates Model 180
  18. Electronic Associates Model 380 Hybrid
  19. General Electric EF-140
  20. Heathkit EC-1 (factory assembled by Heath)
  21. Heathkit EC-1 (factory assembled by Heath)
  22. Heathkit EC-1 (kit)
  23. Heathkit EC-1 (kit)
  24. LAN Electronics Analogue Computer
  25. Logikit LK255 (The Feedback Computer)
  26. MAC-1 Mini Analog Computer
  27. Mark 1A Fire Control Computer, ElectroMechanical Analog Computer US Navy
  28. (Pastoriza) Personal Analog Computer
  29. Range Keeper Mark 6 Mechanical Analog Computer 1930's
  30. Range Keeper Mark 7 Mechanical Analog Computer 1920's
  31. Sargent-Welch Scientific Company Cat. No.7528 Analog Computer
  32. Systron-Donner 3500
  33. Telefunken RAT 700
  34. Welch Scientific Company Cat. No.7528 Analog Computer

Not Analog, but very old!

  1. 1834: Series of articles from the Edinburgh Review on the Babbage Difference Engine
  2. 1889: An article by Herman Hollerith describing his Electric Tabulating System
  3. 1892: A wooden salesmen's model of the Electric Tabulating System
image of the AMF Analog Computer
American Machine & Foundry (AMF)
Model 665/D Educational Computer
image of the LAN Analog Computer
A rare LAN-ALOG Analogue Computer
made in Slough, England

image of the Donner Analog Computer
Donner Model 3500
(before merger with Systron)

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