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.
Radio Electronics magazine published in a 90's issue this simple alarm that can use any general...
This simple circuit tests electrolytic capacitors from 1 uF with a working voltage above 12 V. The...
This circuit was found in a 1967 Raytheon optoelectronics manual. The circuit uses tubes. | Clique...