This small receiver for the medium wave range was found in Radio Electronics magazine from July 1958. The circuit is for listening to headphones and powered by batteries.
This circuit turns on a lamp after the time set on the potentiometer. The circuit is from a Radio...
This circuit was suggested by General Electric in a 1969 documentation. The transistors are of the...
Found in a 1991 PE Hobbyst Handbook, this unit can actually supply 1.5 A with the LM317 and 3 A...