Reply to "Building Flasher Circuit"

Originally Posted by lehighline:

John,

Sorry for the delay. Here is the circuit. The other question Ihave is how to connect the LEDs. I want 8, all to flash at the same time. Would 1 or 2 be the better way to wire these?

Thanks,

Chris

LVHR

You can get by with diagram 2 maybe if you increase input to 12VDC. Use a 7812 regulating circuit as input. White LEDs have about 3 volts forward, red ones about 2 volts and use normally 20 ma. Size resistor accordingly. Resistor value in ohms equals 12 volts minus the number of LEDs in series times their voltage drop all divided by .02. If 0 use a 1 ohm resistor

Dale H

8/9/122:00 AM

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