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.
This circuit was originally intended to operate with a solar source for experiments. Transistors are...
Found in old documentation, this fuzz uses the 741 Operational Amplifier. Assembly is simple, but...
With a mains-rated transformer and 1:1 winding this benchtop circuit was found in the January 1995...