Found in a 1968 EEE, this circuit uses transistors from that time. The output is 300 ns. Transistors can be replaced with modern equivalents.
September 2016 - It can be obtained from Mouser Electronics the new ADC AD7779 from Analog Devices with...
This automatic volume control for audio signals was found in American documentation from the 90s....
This circuit was found in a 90s Silicon Chip documentation. The current of the transformer is 1 A maximum,...