This circuit was found in the 1990 Motorola Dataar Linear. We can mount it with more modern equivalent transistors. Output transistors shall be provided with heat radiators.
This circuit is from a 1987 magazine, but it can still be easily assembled, as the components are...
This circuit was found in a Popular Electronics from 1991. The transistor could be the BC548. The...
This circuit, which can be used to indicate the movement of an object, was found in NASA...