This 6-transistor Japanese radio from the 1960s used germanium transistors and had an output power of 180mW. The circuit is of the superheterodyne type with push-pull class B output.
This circuit was found in a 90s Silicon Chip documentation. The current of the transformer is 1 A maximum,...
The output of this circuit using the NE5560 has the opposite polarity of the input voltage. The...
Found in an Electronic Design from the 90s, this sophisticated continuity tester uses operational...