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Text File  |  1990-04-25  |  1KB  |  20 lines
  1.  
  2.           +-------+                 +------+
  3. IP o------| 4,7 K |-----+      +----| 10 K |------+----o + 5 Volt vom Rechner
  4.           +-------+     |      |    +------+      |
  5.                         |      |                  |     +----> Ausgang, aktiv
  6.                         |      +-------+          |     |               high
  7.         +------+        |      |       |      |\  |14   |
  8. ON  o---| 10 K |--+     |      | C     |   1  |  \|   2 |
  9.         +------+  |     | B  |/        +------|    \o---+
  10.                   |     +----|   NPN          |   /
  11.                   |          |\               | /| 7    1/6 74LS14 o.ae.
  12.                   |            | E               |
  13.                   |            |                 |
  14. GND o-------------+------------+-----------------+------o Rechnermasse
  15.  
  16. IP, ON und GND sind Punkte auf der Platine, auf der die Antenne sitzt.
  17. Das Ausgangssignal hat als Ruhepegel LOW und folgt den Sekundenbits auf HIGH.
  18.  
  19.  
  20. (C) T.Kuester 22.04.90 @ 2:243/18