NE 555 help - astable alternate flashing LED circuit
"In the circuit, the LED1 lights when the output pin has a HIGH state and LED2 lights when the output is in a LOW state." - I couldn't understand this statement in connection with the diagram:
Here I see a normal LED1 connected to output terminal 3 and to ground and I can understand as how Vcc / high output will appear and then the LED will turn on ,
What I can't understand is how LED2 turns on when output is low: we know LED2 is connected to Vcc and the negative terminal to output 3, when current flows through it and turns it on, the output at 3 should be low to have a voltage difference and hence led 2 turns on.
But then when current flows through LED2 - after flowing through 2, where will it travel, as pin 3 is the dead end as the output there is low, can current flow inside the push-pull amplifier (which inverts the output from flip-flop ) and then flow to ground via discharge transistor or am I missing something?