“The significance of German electronic engineering in the 1930s”
Hescho, Stemag, Lorenz, Telefunken, Rohde & Schwarz, magnesium alloys, IG Farben, Hans Vogt, Mahle, modular technology, FuG 10, T 200 FK 39, temperature compensation, Handrek, Köln E 52, Luft-Boden Project, KWE a, Calit, Calan, PTE, R&S, Sirufer, ITT, Trolitul, Victron, polystyrene, Siemens & Halske, RV12P2000, LS50, E10aK, quartz filter, Elektron, AEG
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Until the end of the nineteen twenties the general developments were quite comparable to those in other important countries. The major divergence started about the beginning of the next decade, just when radio communication was gaining maturity. Because of the industrial philosophy of the Lorenz Company, originally engendered by economical reasons, magnesium-aluminium die-cast techniques were introduced for chassis construction and these considerably improved the specifications of their new products.
At the same time, in the early thirties, the Hescho Company developed ceramic substrates with stable dielectric properties and which had a very low loss factor in the HF region.
The third important factor in the new German technology was the invention of low loss iron dust-core material by Hans Vogt.
In Europe both Switzerland and Germany had a penchant for the extensive use of complicated and fine mechanical constructions and the above developments were a contribution to that style of technology.
All these developments opened the way to completely new kind of electronic apparatus design. Today, it is quite common that advances and improvements in technology can only be realized by the use of newly developed techniques (often originating from outside the discipline) as, sooner or later, current techniques become outdated.
Arthur O. Bauer
Consider also: the original Telefunken catalogue of 1941 on Köln (Koeln) E52 receiver "Luft-Bodenprogramm"
Consider also (or go back to): Köln E52 main page
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