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Thread: Bladebuilders rey lightsaber single led to multiple

  1. #1

    Default Bladebuilders rey lightsaber single led to multiple

    Hey you guys,

    Probably a stupid question and already asked a 100 times but I can't find the answer so here goes.
    How do i make it so, that the pcb of the saber wich had 1 led, so I can wire multiple leds to it? I took a flashlight and changed the led from it to very bright blue ones but when I solder it to the led+ and led- it doesn't work. If only just a little bit?
    Help me .... you are my only hope

  2. #2

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    You'll need to use transistors, many have used the trusty TIP42C for this purpose.

    Check out this thread for some diagrams and ideas: http://forums.thecustomsabershop.com...w-DVD-Tutorial
    (this should probably be a sticky)

  3. #3

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    Best bet is to use the transistor method. This was done on the 2010 budget sabers in this thread: http://forums.thecustomsabershop.com...w-DVD-Tutorial

    It's a different sound board, but the procedure should be the same.

    Edit: jbkuma beat me to the punch!
    We all have to start somewhere. The journey is all the more impressive by our humble beginnings.

    http://led.linear1.org/1led.wiz for the lazy man's resistor calculator!
    http://forums.thecustomsabershop.com...e-to-Ohm-s-Law for getting resistor values the right way!

  4. #4

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    I know! I found that one and tried it. But the weird thing is that it only lights up when the clash sound is activated. So that doesn't work the way I hoped

  5. #5

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    I expect that means you have the transistor wired to the wrong side, have you tried wiring it to the speaker? Wiring it to the speaker gives a nice flicker effect.

  6. #6

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    Haha no I'm quite sure. When the original led is placed and the clash is activated, the led flickers on and off. So it looks like the way I did it is reversed.

  7. #7

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    Wait! Is it so, that I put the transistor the wrong way? I diagram shows no writing on the transistor. So is it possible I wired it the wrong way?

  8. #8

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    It is very possible. Not all transistors are wired the same. Check the pinout of your transistor.

    The "emitter" pin should go to your battery.
    The "collector" pin should go to your LED.
    The "base" pin should go to the sound board.
    We all have to start somewhere. The journey is all the more impressive by our humble beginnings.

    http://led.linear1.org/1led.wiz for the lazy man's resistor calculator!
    http://forums.thecustomsabershop.com...e-to-Ohm-s-Law for getting resistor values the right way!

  9. #9

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    It works you guys!!! Thank you! The next problem though, it works so good that it seems like it warms up. Not to a boiling hot but still... is that a problem?

  10. #10

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    Not really a problem unless the magic smoke comes out. Some parts get warm when you run power through them. LEDs, resistors, transistors, etc.
    We all have to start somewhere. The journey is all the more impressive by our humble beginnings.

    http://led.linear1.org/1led.wiz for the lazy man's resistor calculator!
    http://forums.thecustomsabershop.com...e-to-Ohm-s-Law for getting resistor values the right way!

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