Hi friends ,
i have attach the circuit in my attachment...
I have two circuits and one relay :
1)repeating timer
2)monostable circuit
i want to run the one relay from both circuit..
Eg :
If i press the trigger button on monostable circuit the relay should run.
And if i turn on the repeating timer circuit the relay should run again after the preset time.
I have add the relay at the output of repeating timer circuit...
Again , i dont want to add another relay..
I want to use only one relay which is added at the output of repeating timer.
Insert a 1N4148 diode between pin 11 of the 4093 and the left end of the 2k2 base resistor (anode goes to pin 11). Insert a similar diode between pin 3 of the 555 and the left end of the 2k2 base resistor (anode goes to pin 3 of the 555).
Edit: BTW, that's an awful repeating timer circuit, requiring a non-polarised cap and 3 gates. A single-gate timer with a polarised cap would be better.
Insert a 1N4148 diode between pin 11 of the 4093 and the left end of the 2k2 base resistor (anode goes to pin 11). Insert a similar diode between pin 3 of the 555 and the left end of the 2k2 base resistor (anode goes to pin 3 of the 555).
Edit: BTW, that's an awful repeating timer circuit, requiring a non-polarised cap and 3 gates. A single-gate timer with a polarised cap would be better.
Here's the edited circuit, but I can't commend it. Using a 470uF cap with a timing resistor >= 1megohm may or may not work, because the cap charging current is of the same order as the cap leakage current:- View attachment 66231