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 100PCS Original 2SC1969 C1969 NPN Transistor NEW  US $450.00
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 50 X Original 2SC1969 C1969 NPN Transistor new US $234.00
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 50pcs Original 2SC1969 C1969 NPN Transistor new A40 US $233.98
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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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100PCS Original 2SC1969 C1969 NPN Transistor NEW US $450.00
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50 X Original 2SC1969 C1969 NPN Transistor new US $234.00
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50pcs Original 2SC1969 C1969 NPN Transistor new A40 US $233.98
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 10pcs Original MITSUBISHI 2SC1970 C1970 NPN Transistor US $109.00
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 10pcs Original MITSUBISHI 2SC1970 C1970 NPN Transistor US $109.00
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 20pcsOriginal New 2SC1969 C1969 NPN Transistor US $93.80
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 20pcs Original 2SC1969 C1969 NPN Transistor new A40 US $93.78
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 50pairs 2N3055 MJ2955 NEW ORIGINAL ST NPN PNP Powerx100 US $90.00
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 10pcs Original 2SC1945 C1945 NPN Transistor new A40 US $79.98
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 15PCS ORIGINAL 2SC1969 C1969 1969 NPN TRANSISTOR IC NEW US $77.43
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 12pcs Original 2SC1969 C1969 NPN Transistor NEW US $59.99
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 10NEC 2SC1451 original transistor NPN NEW miao US $49.98
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 10pcsOriginal New 2SC1969 C1969 NPN Transistor US $47.97
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 8pcs Original 2SC1969 C1969 NPN Transistor new A40 US $43.80
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 8 X ORIGINAL 2SC1969 C1969 1969 NPN TRANSISTOR IC NEW US $43.78
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 2SD882 Original NEC Transistor NPN D882 RoHS Qty 100 US $42.00
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 10p Original KSD471A D471A NPN TRANSISTOR TO 92 NEW CK34 US $39.99
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 100pcs 2SC2314 C2314 NPN Transistors ORIGINAL SANYO US $36.88
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 5778 4A3 Sanyo NPN Transistor Original New Pack of 5 US $30.00
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 6PCS Original 2SC1969 C1969 NPN Transistor NEW US $29.99
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 5pcs Original 2SC1969 C1969 NPN Transistor new A40 US $28.97
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 2N5758 MOTOROLA ORIGINAL POWER TRANSISTOR NPN 6A 150W US $25.99
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 2N3152 Si NPN Power HF BJT New Original Transistor US $20.00
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 original new McIntosh 132 023 NPN transistor 023 7813 US $19.95
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 2SC5000 original transistor Motorola power amp NPN US $19.95
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 2pcs Original 2SC1945 C1945 NPN Transistor new A40 US $19.89
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 5 pcs C5387 2SC5387 NEW ORIGINAL TOSHIBA NPN Power US $13.88
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 2SC4793 C4793 Original TOSHIBA TransistorNPN x 10 PCS US $13.50
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