This is one of the many 555 based car alarm circuits that we have on our website. We found it in a 90’s American documentation. The circuit has double timing.
Found in documentation from the 1990s, this circuit converts 12 V to 9 V from a car's power...
We found this circuit in a 1969 General Electric documentation. The circuit uses transistors of the...
This voltage doubler is indicated for applications where a voltage equal to twice that applied at the...