Found in 90s Popular Electronics, this circuit uses common general-purpose transistors in a configuration that has been extensively explored on this site and in our articles.
These reset circuits when the power is turned on were found in an 80's EDN. The circuit also...
This circuit was found in a Philips documentation from 1970. The components are of the time,...
The LM2904 is not very common today, but common comparators and operationals can be used in the...