An small old antique NE555 oscillator without PCB built it about 30 years ago.

Discussion in 'The Completed Projects Collection' started by ScottWang, Jun 19, 2015.

  1. ScottWang

    Thread Starter Moderator

    Aug 23, 2012
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    An small old antique NE555 oscillator without PCB built it about 30 years ago.

    This is an old project built it in the poor old age, the size around the 8 pins IC NE555, so there is no PCB, I just solder all the RC and VR with 555, so it's quite small, although the pins was broken, but the function is still ok, next time, if I want to build another one then I will using some other types of VR(potentiometer).

    I was used it to put on the breadboard, it's quite convenience to do the test and they given me a great help in the old time, I made two of them with different frequency for different purposes, the circuit was drawn to sharing for the users of ee forum in Taiwan and I changed the name to English, the circuit is a quite normal and easy to build it.

    00-NE555PulseGeneratorForBB-01.gif
    01-NE555SmallModule-TopView-01-400x300.jpg 02-NE555SmallModule-FrontView-01-400x300.jpg 03-NE555SmallModule-FrontLieView-01-400x300.jpg 04-NE555SmallModule-LeftLieView-01-400x300.jpg 05-NE555SmallModule-LeftView-01-400x300.jpg 06-NE555SmallModule-BackView-01-400x300.jpg 07-NE555SmallModule-BackLieView-01-400x300.jpg 08-NE555SmallModule-RightView-01-400x300.jpg

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  2. nerdegutta

    Moderator

    Dec 15, 2009
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    Nice!

    I'd like to see the SMD version. :D
     
    SgtWookie and KLillie like this.
  3. ScottWang

    Thread Starter Moderator

    Aug 23, 2012
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    If making a SMD version, maybe it will needs a 3 or 4 pins to be the pin out, but it is an idea to think of, thank you.
     
  4. nerdegutta

    Moderator

    Dec 15, 2009
    2,515
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    VDD - VSS - Trig - Out.

    Hm... Put togheter on a 4 pin header. That could be a fun weekend project. But not this weekend.
     
  5. ScottWang

    Thread Starter Moderator

    Aug 23, 2012
    4,853
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    I already made one for 4 pins pin out, but it was bigger one ... :)
    09-NE555_588x800-PartsSide.jpg
     
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