Found in the 1989 Radio Electronics Experimenter special edition, this circuit was designed for assembly with SMD components. The printed circuit board was provided.
The transistor used is one of the first power Darlingtons with a collector current of 3 A. The...
This 1 kHz circuit was found in American documentation from the 90s. The original operational...
Only the right combination of the positions of the 6 rotary switches of 1 pole x 10 positions of...