I have made this circuit and there a few issues
1. Monostable section works and gives me 13 seconds (will come down to the 5 seconds when i have a working full setup) but the Astable section dont seem to work, it gave me a flash using 1 LED but then aint done it since.
2. The 7 LED's dont flash at all (they dont even light, SO not sure where you got that 30v spike from on your test data)
3. The buzzer and LED's have to come on at the same time. The buzzer is so that if you dont see the LED's flash you know that the time is up.
4. The 30000 MCD LEDs are not bright enough (was in a 1m x 1.5m room and it hardly lit the room) - this was wired in parallel to a 3v source (2x AA batteries)
Can someone advise me how to progress please.