This circuit was found in an old documentation for radio amateurs. The circuit makes use of an uncommon integrated today. The circuit converts telegraph signals to be used on the computer.
This 1 kHz filter was found in the March 1997 issue of Electronics Now magazine. The circuit is...
Found in the June 1972 issue of Radio Electronics magazine, this circuit generates signals that...
Using two LM377s, this amplifier provides a few watts of audio in a low impedance speaker and the power...