Found in a 1990 PE Hobbyst, this 4-digit circuit has a high response speed. The circuit is based on TTL logic.
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...