This circuit is from the 80's but uses common components today. The relay is voltage sensitive according to the power supply used. Transistors may be general purpose types.
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...