This high current switching stage was found in a 1967 EEE. The power transistor is from that time. The peak current can reach 30 A.
This circuit was found in an American 1980s documentation. Equivalent operational amplifiers can be...
Although most common piezoelectric transducers have a reduction in performance at frequencies...
This sound relay, Vox or acoustic switch has a bistable action triggering a relay when the...