This amplifier was obtained from an Electronics Now from the 90s. The circuit has a dual 26V power supply. Power integrated circuits must be equipped with good heat sinks.
The AM QAM stereo system works experimentally with some stations, but it should not be equipped, as the...
This circuit was obtained from the October 1977 Radio Electronics magazine. The meter is analog, and...
This 3, 5, 6, 9 and 12 V power supply selected by a switch has a digital indicator of the selected...