Found in a 1980s amateur radio QST magazine, this is the conventional circuit of a medium-wave radio. Coils and transformers are commercial types.
Found in an Electronic Design from the 90s, this circuit generates a mathematical function given by the...
This oscillator generates a fixed frequency signal determined by C1 and C2. In the case of 1 nF,...
This amplifier for distributing audio signals appears in other articles on this website and even...