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Unread 10-04-2008, 01:03
bobabot1 bobabot1 is offline
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FRC #2550 (Pioneer Robotics Organization (OCPRO))
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Join Date: Feb 2008
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Re: Amplify Remote control IR signal

I am trying to rig up an LED array for my team but so far, I'm having some troubles. I want to make a 20 IR LED array but I know the transistor I will need to use to boost the signal voltage of the remote I'm using. Here's my schematic thusfar (sorry for crude ASCII drawing. -|>- is an LED and -/\/\/- is a resistor. The circuit is four parallel groups of five LEDs in series)

+----|>|----|>|----|>|----|>|----|>|---/\/\/----+ R = 15 ohms
+----|>|----|>|----|>|----|>|----|>|---/\/\/----+ R = 15 ohms
+----|>|----|>|----|>|----|>|----|>|---/\/\/----+ R = 15 ohms
+----|>|----|>|----|>|----|>|----|>|---/\/\/----+ R = 15 ohms

I've heard that I can use a 2N3904 transistor. Would that be what I'm looking for?
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