Duck sound generator

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a21

New Member
Hi all,
I am new here, so please be patient
I found a circuit that produces duck sound with 2 555 timers and few resistors and capacitors. The problem is that in the description are not shown the values of these discreets. If somebody has other circuit it is ok. Hope someone will help me. Here is the circuit:
**broken link removed**

Regards!
 
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