karlkary,
viewing your "About" info in German, I understood only few words: "Problem", "Impotenz", "Erektion". Sorry.
Don't know how are you, but Lev Termen never had problems with erection or potency, up to his passing. According to recollections of his friends, he always gravitated to very young women. Even being an old man, once, he almost married a girl (her parents woke up in time). Before passing, he was interested on "microscopy of time" problem ("микроскопия времени"), experimenting with sperm. On the question "Whose is this material?" he only smiled enigmatically.
Source: B.Galeyev. "Soviet Faustus" (in Russian).