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![]() 100PCS Original 2SC1969 C1969 NPN Transistor NEW US $450.00
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A momentary switch for two LEDs, one off one on? Please help?
I'm looking to use a push button momentary switch in such a way that one LED is on when the button isn't being pushed and then when the button is pushed it turns a different LED on and kills the power to the original LED. I'm new to electronics and looking for some help. I have some NPN and PNP transistors on hand if they would help in some way. I've been trying to figure this one for some time with no luck. I'm currently using two switches to accomplish this and hoping to replicate my design with only one switch if possible.
Your best bet is to use a SPDT pushbutton switch. Such a switch has three terminals: a common, a normally-open (NO) and a normally-closed (NC).
Wire the common to ground, tie the anodes of your two LEDs to +V (through a resistor for current limiting if needed). Then tie one cathode to NC, and the other LED's cathode to NO.
Done!
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US $450.00





























































