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Max Gürth - LECTRON Circuit Designer

On December 11th, 2015, I had the honor to meet with Mr. Max Gürth along with my research colleague Günther Stabe. We enjoyed a typcial Bavarian lunch together in a Munich pub. From left to right - Mr. Gürth, Mr. Stabe, and me.

Mr. Gürth was born January 5th, 1943 in Graz, AUSTRIA. He studied High-Frequency electronics in Graz and then joined Siemens' Development Center for Communication.

He retired as a pensioner in May of 2002 which allowed him to devote more time to his passion of music and choirs.

Mr. Gürth first became involved with the LECTRON in 1968 when he read a notice published by Braun AG in the newspaper Sendlinger Bote seeking graduate engineers to develop LECTRON modules, and experimental/instructional systems. He replied to the notice and was granted an interview to meet Mr. Georg Greger, the inventor of the LECTRON System, at Mr. Greger's office at Deutsche Lectron which was located at 73 Albert Rosshaupter Strasse in Munich. His first formal project was to help Mr. Greger revise the Ausbausystem 3 and System 300 models that had been originally designed and the manual written by Mr. Joachim Schubert.

Mr. Gürth was a Siemens' employee for many years but was also a friend to Mr. Georg Greger (the inventor of the LECTRON System) during the late 1960's and early 1970's. Mr. Gürth met with Mr. Greger many times at the latter's office at Deutsche Lectron and visited his home on several occasions.

In 1969 Mr. Gürth continued working with Mr. Greger to develop extensions to Mr. Schubert's documents, digital technology circuits using TTL chips, power electronic circuits, and automation control technology circuits. All of these undertakings were pursued and implemented in pattern blocks and concepts.

An avid circuit designer, Mr. Gürth created at least two hundred distinct circuits with many functional devices as an outcome. Several of these are shown below. Although never formally credited in the LECTRON manuals, Mr. Gürth was also an engineering consultant to Mr. Edzard Timmer, Mr. Hartmut Birett, and Mr. Joachim Schubert to help design and optimize LECTRON circuits used in their models relating to digital circuit techniques.

The photograph below shows Mr. Gürth's amazing LECTRON portable demonstration laboratory. Many prototype circuits were developed and shown at various schools to show the versatility of the LECTRON System.

Another view.

Mr. Gürth also built a smaller demonstration case which he used to show new circuit ideas to Mr. Greger. I was incredibly fortunate to have received this case as a gift from Mr. Gürth! What a wonderful piece of history for Lectron.Info to have.

The video below shows Mr. Gürth describing the demo case while my research colleague Günther Stabe and I look on and ask questions.

Below are some of Mr. Gürth's LECTRON projects!

A LECTRON 8 bit memory register!

A LECTRON oscilloscope!

A LECTRON Geiger counter! The old style watch used a combination of radium and phosphorus painted on the dial face numbers and hands to glow in the dark. Radium use was phased out in the 1950's and 1960's in the US because of its potential human health hazards. Tritium replaced radium for glow in the dark applications although many companies simply opted for non radioactive compounds that would fluoresce when exposed to light. Of course the glow in the dark function would be of a short duration and would taper off within an hour. Tritium is used today in civilian applications for gun front sights.

Mr. Gürth and me in his apartment with the LECTRON 50th anniversary poster in the background.

Mr. Gürth is also the Vice-President of the "ChorVerband-Bayern e.V.", and sits on the executive board of and serves as the choir director for the "Siemens Mitarbeiter Chor München e.V." which is comprised of former Siemens' employees. He also plays Piano, Keyboard, Organ and Guitar and writes special arrangements for his choirs.