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Lectron - Manfred Walter Era

The Ausbausystem 5 - Kybernetik III model was announced as 'In Vorbereitung' (in preparation) in the Red Brouchure circa ~ 1976.

The translation of the verbiage is: Further expansion with expansion Lectron system 5 (in preparation) - Cybernetics III - or expansion system Functionsmodelle for biological intelligence processing. The part no. 8 110 063 shows up for the first time in the 1975 price list as the Ausbausystem Funktionsmodelle.

In the 1977-MAR-01 price list, the Ausbausystem 5 appears for the first time as part number 8 100 072 with a price of 249 DM. No photo or appearance in a catalog of this model has yet surfaced as of November, 2013.

What was the subject matter of the Ausbausystem 5? It was not the described 'in preparation' subject matter of Cybernetics III as listed in the Red Brochure. The actual subject matter was not revealed in the (known) price lists until March 1st, 1982 when the System 500 (the complete self-contained version of the Ausbausystem 5) was also first listed. The Ausbausystem 5 did not have a subject matter description but the System 500 did - Leistungselektronik (power electronics). This model likely included the Triac, Diac, Unijunktion Transistor, Leistungstransistor npn, and Leistungsdiode blocks.

By the February 1st, 1993 price list, a more complete description of the Ausbausystem 5 was profiled: Logik und Leistungselekronik incl. Lectron Motor. The price was also increased to 399 DM. The System 500 had ceased being listed in the price lists as of the known price list of February 10th, 1987.

The Labor Spezial SK III model incorporated the Leistungselektronik module of the Ausbausystem 5.