This circuit was found in documentation from Analog Devices from the 90s. The circuit uses components from that time, which are not common today. It serves as a reference.
This circuit was found in a 1969 Mullard publication. The transistor may be the modern equivalent...
This circuit uses an operational like to the 741 having been found in a 2001 documentation. The...
Found in English documentation, this timer produces an audio signal at the end of the timing. The...