Switching intensity of LEDs

Posted on Feb 7, 2014

I built this circuit and for some reason it works. FYI, the diodes are red 5mm LED`s, the transistor is 3904 NPN, and the resistors are what are shown in the schematic. Logically it should not work when you press the PBNO. The red 5mm diodes should be destroyed. According to simulating, the current is above 300mA. How is it pos

Switching intensity of LEDs
Click here to download the full size of the above Circuit.

sible this circuit physically works The lights are dim, then when you press the PBNO, they become bright, which is what I was after.

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