bertus
Moderator
Hello,
I got an article in Funk Amateur , a german magazine about a long time 555 monostable.
It uses the discharge transistor to charge the capacitor and a parallel resistor on the capacitor to perform the timing.
In this way you can even make long times upto 0.5 hours:
Sorry for the german text, but the schematic will be clear.
Bertus
I got an article in Funk Amateur , a german magazine about a long time 555 monostable.
It uses the discharge transistor to charge the capacitor and a parallel resistor on the capacitor to perform the timing.
In this way you can even make long times upto 0.5 hours:

Sorry for the german text, but the schematic will be clear.
Bertus