The analog computer museum's online library


Carnegie-Mellon University
EAI 680
DO 720
  • Brochure introducing the Dornier 720 analog computer (in German, about 2.5 MB color pdf).
DO 910
Du Pont
310 Curve Resolver
  • Sales brochure (16 pages) PACE TR-48 analog computer, ca. 6.7 MB.
  • Drawing of the patch panel of the TR-48. (Thanks to Josh Bensadon for creating this drawing and his permission to use it here.)
  • Drawing of the -8V / 2V power supply of the TR-48. (Thanks to Josh Bensadon for creating this drawing and his permission to use it here.)
  • A wonderful "multimedia" lecture titled Understanding the ANALOG/HYBRID Computer from 1969.
  • Thanks to my friend Christian Peters who worked hard for many hours this EAI lecture is now available as podcast including audio and synchronized video (slides :-) ) here (about 17 MB). If you are interested in the audio data only, you can find a 16 MB mp3 coded file here.
  • The 14th Edition dating from April 1986 of the EAI User's Group Newsletter (featuring Simstar etc.), ca. 24 MB.
  • A brochure featuring the EAI-231R and accessories: That New Idea from EAI (about 900 kB).
  • EAI Application Bulletin No. 1 (about 2.3 MB).
  • EAI Application Bulletin No. 3 (about 1.2 MB).
  • A Practical Approach to Analog Computers by John D. Strong and George Hannauer gives a good introduction to analog computing using the then new EAI-231R tube based analog computer, one of the finest instruments ever made.
  • Stored Program Concept for Analog Computers - this was prepared for the George C. Marshall Space Flight Center, NASA in 1968 when they requested a study to be performed by EAI whether some form of automatic programming was possible for analog computers. The resulting switch matrices came to be known as Hannauer matrices. I would like to thank Alex Bochannek from the Computer History Museum who scanned this study.
  • The famous Handbook of Analog Computation published by EAI which covers next to everything about analog computing (about 23 MB).
  • EAI 3440 DATAPLOTTER - a publication describing the 3440 DATAPLOTTER (about 1.6 MB).
  • EAI HYDAC - a truly wonderful six page publication describing the then new EAI HYDAC 2000 system with wonderful pictures of the system (about 1.3 MB). In addition to this there is a letter from EAI to its customers introducing the HYDAC system (in German, 162 kB).
  • EAI MICROSTORE Model 2.395 - a product information release introducing the PACE MICROSTORE, a high-speed tracking, storage and switching device for the EAI 231R series of analog computers (about 1 MB).
  • EAI Products and Services - a short publication covering the main products and services offerend by EAI (about 2.1 MB).
  • EAI standard data processing instruments - a six page publication featuring IO devices and the like (about 1.2 MB).
  • EAI SPECIFICATIONS FOR TRANSISTORIZED GENERAL-PURPOSE ANALOG COMPUTER - a requirement document for a transistorized GPAC (about 2 MB).
  • EAI TR 20/TR-48 desktop analog computers - a six page publication introducing these two computers (about 6 MB).
  • EAI REPORT 015 (about 30 MB!).
  • EAI REPORT 016 (about 7.1 MB).
  • EAI REPORT 017 (about 5.3 MB).
  • EAI Maintenance Pocket Guide - this small booklet (13 MB!) contains a wealth of information helping the field engineering during repairs of EAI analog computers. The most important part (at least for me) is the section describing the integrated circuits used and the list with transistor replacement types.
Ford Instrument Company
  • Thanks to Heribert Müller who lend me the Bedienungsanleitung for the EA-22 analog computer manufactured by the small company GTE, you can download it here as a 3.4 MB pdf-file (in German).
  • Thanks to Rainer Glaschick, we now have a second version of the manual for the EA-22, ca. 2.4 MB.
  • Thanks to Rainer Glaschick, we now also have the Technische Information for the EA-22, ca. 10 MB.
  • Thanks to my friend Hans Kulk who sent me some wonderful manuals and thanks to my beloved wife Rikka who devotes much time to the scanning of documentation, you can now download a wonderful brochure of Hitachis 200X analog computer (38 pages, English, about 7 MB).
Packard Bell
Rechenelektronik Glashütte
endim 2000
Analogue Tutor
Systron Donner
DEX 100
DEX 102
DEX 802
ERV 801
HRS 860
HRS 900
NN 800
OMS 811
  • Handbook for the OMS811 oscilloscope, in German, about 700 kB.
RA 463/2
  • Bedienungsanleitung - (quite preliminary) manual of operation, about 1957/1958. In German, 3 MB.
  • Mechanical drawings , about 2 MB.
  • A two page brochure showing the TELEFUNKEN RA463/2 electronic analog computer, in German, 400 kB.
  • The complete drawings for the RA 463/2 can be found here (caution: 24 MB!).
RAT 700
RA 741
RA 742
RA 770
RA 800
  • Description of a small electronic Analog-Computer built by VERO Electronics, ca. 20 MB.
Helmut Adler
W. Ameling
W. Ammon
Alan F. Barnes
Robert M. Barnett
Charles H. Beck, Ming H. Kuo
D. Bollen
  • D. Bollen once published a wonderful series of articles describing how to build a homebrew analog computer called PEAC (thanks to Marc de Piolenc for providing this wonderful scan), ca. 29 MB.
Matthew Butler
  • What is a Hybrid Computer and Why - publication detailing on the hybrid computer installation at the Control Engineering Department of Cambridge University (thanks to Matthew Butler for this document), ca. 1 MB.
Hubert Cremer (Hrsg.)
Brian F. Doolin, John D. McLean
Willi Frisch, G. Wilhelmi
Forrest H. Frantz, Sr.
Freiberger Forschungshefte
A. G. Guibert, E. Hanssen, W. M. Robbins
Volker Hornung
  • Thanks to Mr. Böhringer from the Universität Karlsruhe you can find here a so called "Studienarbeit" describing the development of a control system to implement a magnetic suspension (a hovering metal ball :-) ) - about 18 MB!
Arno Jacobs
  • Mr. Arno Jacobs developed a symbol library for the well known layout editor EAGLE which contains all symbols necessary to draw analog computer setups. The ZIP-file contains the library files as well as an example drawing showing a ball-in-the-box circuit. I would like to thank Mr. Jacobs cordially for this library and his permission to make it available at the analog computer museum.
R. S. Johnson, F. R. Williamson, R. D. Loftin
R. Ludwig
Martin Marietta
  • Here is a paper describing the Martin-Marietta Aerospace Simulation and Test Laboratory (thanks to Marc de Piolenc for enhancing the scans and creating a PDF file).
Andre Masson
Kurt Nixdorff, Helmut Altmann
Conrad Paul Pracht
A. Riotte
Arthur I. Rubin
Jack A. Russel et al.
  • Dr. Ralf Bülow found an interesting patent describing a completely analog golf simulator - a must read. :-)
G. Schneider
B. Schrimpe
Albert I. Talkin
D. L. Teuber
Bernd Ulmann
  • At the VCFE 2006 in Munich I performed a talk covering the development of analog and hybrid computers at Telefunken. The slides for this talk can be found here (about 4.5 MB).
  • Also at the VCFE 2006 in Munich I had a second talk covering the basics of analog and hybrid computing. The slides are available here (ca. 3 MB).
  • Yet another talk at the VCFE 2006 in Munich gave some examples of problems with their solution on an electronic analog computer. The slides may be found here (ca. 650 kB).
  • In the summer term 2008 I gave a talk at the University of Hamburg with the title "Faszination Analogrechnen". The slides are available here (ca. 3 MB).
  • Also in 2008 I delivered a talk at the University of Hamburg about Helmut Hoelzer's work in Peenemünde which eventually led to the so called Mischgerät and the first truly universal electronic analog computer which was completed in 1941. The slides for this talk can be found here (ca. 1 MB).
  • On 27-MAY-2009, I will deliver a talk entitled "Think Different - Think Analog" at the Kolloquium des Lehrstuhls Medientheorien on the HU-Berlin. The slides for this talk can be downloaded from here (ca. 700 kB).
  • On July 9th, 2009, I had my final examination for my Ph.D. (the so called "Disputation") - the slides for my introductory talk can be found here (about 36 MB).
  • On December 10th, 2010, I delivered a talk The Power of Analogs at the Winterkolloquium of the institute for process control at the RWTH Aachen (the set of slides is quite large - 11 MB all in all).
Universität Stuttgart
  • Workshop notes HYBRIDE SYSTEME, (28./29. February 1972, Institut für Informatik, Universität Stuttgart), ca. 9.4 MB.
Armand Van Wauve
Dr. F. Vogel
  • Dr. Vogel wrote a great introduction to analog computing which can be found here (in German, 1.7 MB).
  • Dr. Vogel also built a wonderful small electronic analog computer which is ideally suited for teaching. The documentation of his analog computer can be found here (in German, 2.2 MB). Since my conversion of Dr. Vogel's original Word documents to PDF was erroneous and deleted the first page of the schematics, the two page schematics of his computer can be found here for download.
  • In 1977 Dr. Vogel completed his dissertation about a genuine new resolver design without complicated diode networks. This is a very interesting approach and his thesis contains detailed schematics of his new resolver design. The thesis can be found here (about 17 MB!).
  • Dr. Vogel built a tube based analog computer which is described here (German, 2.7 MB). A wealth of real programming examples using this wonderful homebrew computer can be found here (German, 1.8 MB).
H. Webster
Dr. Walter Zimdahl
No author / author unknown
  • A VERY (!) clever way to compute the length of a two element vector has been described in an old issue of analog dialogue - this article is a real treasure (thanks to Marc de Piolenc for cleaning and enhancing the scan).
  • DIN 40700, Schaltzeichen Analogrechentechnik, Oktober 1969, ca. 600 kB (thanks to Dr. Stefan Höltgen and Johannes Maibaum for the scan).