This static switch or electronic contactor was found in a 1968 Motorola publication. The triac depends on the current of the load it controls. The values shown are for the 120 V power grid.
This circuit was found in a 1965 Electronic Design. Transistor Q2 must be load dependent. The circuit...
This 8-channel converter was found in a 1970s American documentation. The integrated circuits used are...
This rectangular signal generator was found in an Electronics World of 1966. The transistors are...