The output forms either an open circuit or a connection to ground. The output usually consists of an external pull-up resistor, which raises the output voltage when the transistor is turned off. When the transistor connected to this resistor is turned on, the output is forced to nearly 0 volts.
The Gun Control Act of 1968 (GCA or GCA68) is a U.S. federal law that regulates the firearms industry and firearms owners. It primarily focuses on regulating interstate commerce in firearms by generally prohibiting interstate firearms transfers except among licensed manufacturers, dealers and importers.
Precursors of the passage of the Gun Control Act were Senate Bill 1975 in 1963, A Bill to Regulate the Interstate Shipment of Firearms, and Senate Bill 1592 in 1965, A Bill to Amend the Federal Firearms Act of 1938.. Both were introduced by Senator Thomas J. Dodd and both died in committee.