Can you guess what this circuit does?

Discussion in 'General Electronics Chat' started by jsthomps, May 7, 2010.

  1. jsthomps

    Thread Starter Member

    Mar 30, 2010
    15
    0
    Hi guys,
    Just for fun I thought that I would post this 1972 circuit and ask if anyone can figure out what it does? It is pretty obvious that it is a sound circuit but can anyone guess what sound effect it produces?
    Regards,
    Scott
    PS There is a hint if you look at the back-page print that came though on the scan
     
  2. Audioguru

    New Member

    Dec 20, 2007
    9,411
    896
    It produces white noise. The PUT is an oscillator to turn it on and off.
    I didn't see a hint.
     
  3. jsthomps

    Thread Starter Member

    Mar 30, 2010
    15
    0
    This circuit produces a "rifle shot" sound effect for a shooting arcade game. The "hint" was the word "rifle" as highlighted in the attached pic. I thought that more people would have responded ... oh well :)
     
  4. retched

    AAC Fanatic!

    Dec 5, 2009
    5,201
    312
    Wow, Ive got to change the contrast setting on my monitor. I didn't even see the bleed through.

    How good was the sound effect?
     
  5. VoodooMojo

    Active Member

    Nov 28, 2009
    503
    53
    I thought that said R!f@@
     
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