This 1969 circuit generates a high voltage that reaches 100 V from 16 V. The power is of the order of 280 mW. The number of diodes determines the voltage multiplication.
This alarm, found in a 2002 documentation, uses several sensors and has a 12 V supply, not...
This circuit uses a special 1950's RCA strobe tube. It can be built with equivalent components for the rest...
This circuit, which can act as a shield, was found in a 1970s American documentation. The...