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  1. L

    Help with an R2-D2 LED Circuit

    So, even thou the 3 LED oscillation circuit works in simulation, how do I get it to work in reality?
  2. L

    Help with an R2-D2 LED Circuit

    I tried swapping out the transisters and no luck. Get the same results. No flashing or just 2 will flash a couple of times and then stay on. Like i said before, I'm just testing out the 3 LED flashing segment right now and trying to get it to work. The 2 LED segment works fine but still too...
  3. L

    Help with an R2-D2 LED Circuit

    The transisters I am using are the 2N2222As ... I do have some 2N4401s or 2N3904s... think changing out the transisters might help?
  4. L

    Help with an R2-D2 LED Circuit

    Well I tried the 1K resistor from the collector of all the Qs to the positive and nothing... they all remained lit. Then I attempted just one 1K at a time and all it did was cause the LED that the Q was attached to to go out. Still no flashing. I'm just doing one set of 3 here...
  5. L

    Help with an R2-D2 LED Circuit

    The 3 transister circuit will basically just light each LED in sequence. I've been working on that... I've stripped it down to just the 3 LED blue/white/blue circuit... I can get red/yellow/green to work, but not the blue/white combo. I just tried the 1K resister between the collector...
  6. L

    Help with an R2-D2 LED Circuit

    in my online research into trying to figure this out, I saw something about a 4060 chip having multiple out but the problem was that it could only drive 3 LEDs... I thought about using that, but not sure how to go about it. If it can only drive 3 LEDs at a time that would mean I would need 4 of...
  7. L

    Help with an R2-D2 LED Circuit

    Yeah... I was using the astable multivibrator principle and expanded it in the lower left to include 3 Qs instead of just 2. Perhaps I am wrong. Would there be an easier way of doing this with a IC chip?
  8. L

    Help with an R2-D2 LED Circuit

    No one has any advice?
  9. L

    Help with an R2-D2 LED Circuit

    Greets all... new around here and could really use a little help. I'm building a 1/9th scale R2-D2 robot from Star Wars and have been racking my brain trying to figure out a way to get it to light up properly. I'm using some fiber optics in a fine grid pattern to get the "logic" panels to...
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