I forgot this nice set of blocks made by Max Guerth – also found at Mr. Timmer’s cellar:

    Conclusion: the nearly thousand b/w photos and scripts made by Max Guerth in those years were given to us. It was a hard job to select the documentated experiments, too dark / not sharp / double photos and to merge these with the handwritten concept, drawings and index per theme / system.

    At the end all this – reduced – documentation found place here:

    (Photo: M.P.)

    All known Lectron systems can be found on http://www.radiomuseum.org (home page / simple search: “Lectron” + GO) even these ones.



    • This reply was modified 4 years, 4 months ago by Michael. Reason: Changed font and size styling for easier reading