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Edzard Timmer - LECTRON Designer and Author of the Kybernetik I and II Models and Manuals

Mr. Edzard Timmer was an early LECTRON contributor and was the first to develop a model meant to demonstrate biological behaviors using the LECTRON System.

I was able to locate Mr. Timmer by finding his name and address on a document which had been sent to Mr. Manfred Walter back in 1975. The document contained corrections to the Cybernetic 1 model which the reader may recall was incorporated into the Ausbausystem 2 M model.

Fortunately, Mr. Timmer remained at this address through the years and I was able to retrieve his phone number from an Internet search. My research colleague, Günther Stabe, called him and set up an appointment to visit at his home on 2015-JUL-28.

Unfortunately, Mr. Timmer was not well and could not speak. Mr. Timmer's wife and daughter were present however and helped answer questions and very generously gave numerous LECTRON artifacts and documents from Mr. Timmer's collection to Günther Stabe. Most of these items were in turn given to me for the LECTRON museum.

Mr. Timmer was born in 1928. He married and had three daughters and one son (who works for Siemens). He spent his professional life as a physics teacher in Osnabrück and later in Tarmstedt at the Kooperative GesamtSchule until retiring in 1993.

This photo was provided by Mr. Timmer's daughter and was taken in about 1966.

In addition to designing the Kybernetik I and II models, Mr. Timmer continued his research with cybernetic topics including this wonderful wireless remote control vehicle (Drahtlose Fernlenkung). It was controlled by one of three different circuits which occupied the board on the first level: light directed to a photocell, sound directed to the loudspeaker which was repurposed as a microphone, and radio control using an AM transmitter. The photocell circuit is shown below. Talk about design versatility!

The caption reads "Inputs from the sensors". The logic on the bottom board provided the motion control to the motors of the vehicle. One motor provided the forward and backward motion while the second motor provided the left and right direction.

Vor = Forward -- Zurück = Backward -- Links = Left -- Rechts = Right

Mr. Timmer was a great believer in the LECTRON System and was interested in developing new models. Once again, Maximillian Gürth was there to help. Mr. Gürth had developed numerous new blocks between 1971 and 1972 to demonstrate digital technlogies in a new LECTRON model that he was going to develop. Unfortunately, this was at the time when Braun was divesting itself of the LECTRON assets and distributorship and was therefore disinclined to pursue new models. Mr. Gürth and Mr. Timmer met in 1973 at a meeting in the city of Karlsruhe. Mr. Gürth donated numerous blocks of his own design to Mr. Timmer for the latter's own development projects. The bulk of these blocks were based on the Siemens TTL chip set that was compatible with the 74xx chip family.

The meeting that Mr. Timmer and Mr. Gürth met at also included Mr. Heinz Saucke and Mr. Harmut Birett. They all attended a special conference devoted to the mathematical and natural sciences, the MNU-Tagung. From an internal Lectron, GmbH memo dated 1973-APR-26: The MNU (mathematischen und naturwissenschaftlichen Unterrichts) conference in Karlsruhe was a big success. The new systems for elementary physics (Physik Experimentell by Mr. Saucke) and biology (Funktionsmodelle model by Mr. Birett) was particularly well received. You will receive more information at our next meeting. The earliest that these systems can be delivered is the beginning of next year. Mr. TimmerMr. Saucke, Mr. Birett and Mr. Gürth, four of our authors, were very busy to inform upcoming teachers. The complete memo is available for review.

Some of those blocks that Mr. Gürth developed and gave to Mr. Timmer are shown below. Mr. Timmer's wife generously gave them to Günther Stabe who in turn gave them to me for the LECTRON museum.

A photo of Mr. Timmer from 2008-OCT-30 at a meeting held at the KGS in Tarmstedt.