This circuit is part of an oscilloscope project with the PC. Its purpose is to record a peak in a signal that is to be displayed. We found it in the Radio Electronics magazine of February 1990.
Found in a 1964 CQ magazine this circuit consists of an automatic telegraphic key, providing the...
This is the minimum amplifier configuration with the LM380 and can provide an output of up to 2.5...
The UM3562 integrated circuit (not very easy to find) synthesizes three types of sound that...