thanks for the schematic! i followed the schematic and made the circuit but for some reason i got no output, i double checked the connections and made sure everything was right but still no output. i must be doing something wrong or my chips are faultyIt should look like this.
Your resistor looks like a 10k, not 100k. If you don't have a yellow band, 100k resistor, then you'll definitely need a bigger cap. I think your 0.1F will be flashing 100x per second (100hz) and you won't tell if it is on or off by sight (you'll need a scope or signal counter).
Use a cap in the range of 10u to start out with a 100k resistor. Adjust parts from there.
As I mentioned above. Put a buffering, extra, inverter between RC network and LED. Also use the current limiting resistor on the LED.
See below
View attachment 107839