Although it uses a dual-channel FET, which is hard to find today, this circuit was released in a Radio Electronics issue in April 1986. It serves as a signal booster for a wide range of frequencies.
This small regulator was found in a Motorola 1968’s documentation. It is a current regulator using...
This circuit was found in a 1968 US publication. Transistors used are uncommon today. The circuit...
This electronic bait, or fish attractor, produces a sound in the water that attracts fish of...