This two-output circuit was found in General Electric documentation from the 1990s. The circuit uses an NTC as a sensor and the control element is an SCR.
This sophisticated comparator, which may have didactic or practical purposes, was found in a 1980s...
This simple circuit helps to save incandescent lamps by leaving their filament slightly heated and thus...
We found this circuit in a Japanese 1968’s documentation. The circuit makes use of transistors from...