Explication

3 pins a modifier, voir le schéma ci joint


  ,----------------------------,
 |                            |
 |        AY-3-8914           |
 |                            |
 |                            |
 |                  A   B   C |
 `----------------------------'
                   4|  3| 38|
                    |   |   |
                    |   |   |
     ,--------------+---+---'
     |
     |
     |
     |        ,--------+-- +12V
     |        |        |
     |        |        |
     |        /        /
     |        \ 4.7k   \ 9.1k
     |        /        /
     |        \        \          680pf
     |        |        |      ,----|(-----,
     |        |        |      |           |
     |        +---------------|           |------ to
     |        |        |      |           |  modulator
     |        |        |      |           |
     |         \c      |      |           |
     |          \ | b  |      |   110k    |
     |     3904  \|----+      `---/\/\----'
     |           /|    |
     |          v |    |
     |         /e      |
     `--------|        |
              |        |
              /        /
              \ 470    \ 1.2k
              /        /
              \        \
              |        |
              `---+----'
                  |
                --+--
                 ---
                  -

12 juil. 06 12:41

Intv'Ouest - 2006/2008