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Reply to "Synchronized Flashing of LEDs"

@JohnActon posted:

John did you look at the schematic ?   Guy has 5 pins on one side of the chip.   Here is the actual pinout.    j

The pin numbers are correct, it's common for schematic representations of parts not to have the pin layouts exactly like the physical part.  When I call up a 555 chip in DipTrace schematic capture, I get this:

Clearly, that's not how the pins are arranged on the chip.  A vast majority of the IC's are this way in schematic capture applications.

The part I wondered about on the dual flasher is the polarity of the LED's.  How can LED2 be correct, the cathode is clearly facing the most positive part of the circuit.   I suspect that part should be reversed for proper operation.

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