Hello
I have built a 555 Astable circuit (if anyone has livewire it is the 555 circuit from there)
I built the circuit but not having any potentiometers/var resistors around i used a 20k fixed resistor instead.
Now i have also not got the top led in place but have one connected from the output to negative with a 560 resistor after it (didnt have a 680 around)
And the problem is ...the led comes on ...but it doesnt flash!
Any Ideas?
Also what is the "charging" connection for?
Thanks
Kane
I have built a 555 Astable circuit (if anyone has livewire it is the 555 circuit from there)
I built the circuit but not having any potentiometers/var resistors around i used a 20k fixed resistor instead.
Now i have also not got the top led in place but have one connected from the output to negative with a 560 resistor after it (didnt have a 680 around)
And the problem is ...the led comes on ...but it doesnt flash!
Any Ideas?
Also what is the "charging" connection for?
Thanks
Kane