Simple two led flasher circuit

This 'schematic' and its given component values is nearly identical to the most common example found across the net. And there are probably a hundred (remarkably similar) examples published here on ec. This one is far from optimal

If you are personally offering the 'schematic' and help/advice on it's operation, make sure it's not going to fry peoples components. Did you check the scope? There's a nasty spike across the LEDs. Pop. Also, I don't know where you got that idea but people should know there is no 'fade effect' with this topology.

The commonly built are the best working examples.

Change the value of the capacitor from 10uf to 1 uf to increase the blink rate.

If you want to add more leds remove the 470 ohm resistors from each side and replace with one led each and also replace the 1uf capacitor to 10uf. It could be made more complex by adding more components but I'm talking about a simple 2 led flasher. The fading effect can be done by replacing the 470ohm resistor wiyh a lower value.

There indeed are many value schemes real

...really. I've built many at home and modeled even more here. I've experimented with dozens of value combinations and some of them got crazy readings on the scope lol. But I've always made sure they run smoothly before posting them here. Some users seem to have a hard time grasping that concept. Without giving away everything I've learned about these lovable little circuits, I'd like to stress two key issues. First, on LEDs- if you're testing a circuit here before building it for real keep in mind they have a very wide range of values. If you know the data on the LEDs you intend to use at home, input those values in the editor here. It DOES change more than their color lol. The two I believe most important are the current rating and then forward voltage drop. Secondly on frequency- I've seen many variations running at many different speeds and I've noticed that an astable flasher will operate quite happily at or around 500mHz but not much lower. They also do ok at or just above 1Hz.

Except for the red led, have u ever connected 2 led's in series with a 9v battery?

They all run good.no matter what color except for red and the size whether its a 3 mm

Sorry, I was just trying to be helpful to you and anyone reading this who's interested in these circuits..

Its ok.thnx

I see you changed the caps to 1uF- brilliant. What I'd really like to see is you pulling a rabbit out of your hat and show us all this miraculous "fade effect". It shouldn't be too difficult for a competent enthusiast such as yourself....