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.
Indicated to be used at the sensor input of a PC, this circuit was found in an English...
Found in an English documentation, the output transistor of this circuit must be in accordance with the...
The circuit shown is from an American publication from 1970. It produces a tone that attracts fish...