Page 1 of 2 12 LastLast
Results 1 to 10 of 17

Thread: 70s Style Color Organ

  1. #1
    Join Date
    Sep 2007
    Location
    Omaha, NE
    Posts
    769

    Default 70s Style Color Organ

    I was talking with another member here and the topic of the old 70s color organ came up. OK, here's a question- how many people here spaced out to these back in high school? (my hand is raised).



    The reason I ask is this- I have a current Lumia projector in the works, and I thought it would be nice to be able to modify it by adding a mode that controls modulation via sound input. I have a modern version of a color organ that blinks LED's, but I have found that this one is more of a peak level meter than a true notch filter that segregates frequency bands. Another thing that I would seek in the ideal circuit is the ability to modulate with intensity, rather than a mere on/off flicker.
    There are plently of kits out there, but after much looking, I am not sure any of them possess the specific attributes I require.

    I have a toy "spy microphone" that has a sensitive mic and preamp, so I thought that might serve as a starting point. It seems like most of these circuits use what amounts to a speaker crossover to split the incoming sound signal into its respective bands. It shouldn't bee too difficult, but then again I am no EE. If anyone has any suggestions or thoughts, let me know!

    -Mike


  2. #2
    Join Date
    Feb 2005
    Posts
    1,131

    Default

    My Grandfather and I built some when I was around 10.
    He owned an Electric lighting business.

  3. #3
    Join Date
    Jul 2007
    Location
    Knoxville, TN & Huntsville, AL, USA
    Posts
    3,093

    Default

    FLASHBACKS!!

    Heathkit, mid-70's -

    Three strings of Christmas lights behind a cool lens and frame, synchronized to the treble (yellow), mid-range (blue), and bass (red).
    Coolest Christmas lights / music gadget I ever saw, until the Light O Rama system came on the scene a few years ago!! (Christmas '09 should be entertaining ).

    Also had the plasma light bulb (duh!), and then - I discovered lasers....
    RR

    Metrologic HeNe 3.3mw Modulated laser, 2 Radio Shack motors, and a broken mirror.
    1979.
    Sweet.....

  4. #4
    mixedgas's Avatar
    mixedgas is offline Creaky Old Award Winning Bastard Technologist
    Infinitus Excellentia Ion Laser Dominatus
    Join Date
    May 2007
    Location
    A lab with some dripping water on the floor.
    Posts
    8,819

    Default

    [quote=Stuka;86931]FLASHBACKS!!

    Heathkit, mid-70's -

    Three strings of Christmas lights behind a cool lens and frame, synchronized to the treble (yellow), mid-range (blue), and bass (red).
    Coolest Christmas lights / music gadget I ever saw, until the Light O Rama system came on the scene a few years ago!! (Christmas '09 should be entertaining ).

    You just had to go and mention that, now I'll have that "wizards in winter" youtube in my head all day...........

  5. #5
    Join Date
    Jul 2008
    Location
    Maryland
    Posts
    1,628

  6. #6
    Join Date
    Jul 2007
    Location
    Knoxville, TN & Huntsville, AL, USA
    Posts
    3,093

    Default

    [quote=mixedgas;86941]
    Quote Originally Posted by Stuka View Post
    FLASHBACKS!!

    Heathkit, mid-70's -

    Three strings of Christmas lights behind a cool lens and frame, synchronized to the treble (yellow), mid-range (blue), and bass (red).
    Coolest Christmas lights / music gadget I ever saw, until the Light O Rama system came on the scene a few years ago!! (Christmas '09 should be entertaining ).

    You just had to go and mention that, now I'll have that "wizards in winter" youtube in my head all day...........
    Yep - and hopefully, in my front yard for the holidays!
    (Although probably not NEAR as elaborate as the youtube video!!)
    Last edited by Stuka; 03-12-2009 at 10:57.
    RR

    Metrologic HeNe 3.3mw Modulated laser, 2 Radio Shack motors, and a broken mirror.
    1979.
    Sweet.....

  7. #7

    Default

    Unfortunately, I am much to young and have never seen one of these in person. I was thinking about building one, and actually watching youtube videos yesterday. Does anyone know of any plans online to build one? It looks like they are not that sound responsive though.
    - instinct

  8. #8
    Join Date
    Apr 2005
    Location
    SOUTHAMPTON U.K.
    Posts
    1,345

    Default

    Yeah, I had one of those when I was 16. Cutting edge stuff back then.

  9. #9
    Join Date
    Nov 2007
    Location
    Cairns, Australia
    Posts
    1,896

    Default

    Are those LED's or little coloured incandescent bulbs?

  10. #10
    Join Date
    Jul 2007
    Location
    Knoxville, TN & Huntsville, AL, USA
    Posts
    3,093

    Default

    Back in the ancient days (70's), they were good old unreliable incandescent light bulbs!!

    LEDS would probably be much more reliable and generate a lot less heat...
    RR

    Metrologic HeNe 3.3mw Modulated laser, 2 Radio Shack motors, and a broken mirror.
    1979.
    Sweet.....

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •