This circuit shows how to add a 1st regulator to a source that already has a step for this purpose. The circuit was found in an American power supply documentation.
This extremely slow circuit produces one pulse per month and can be used in a timer. We found it...
This circuit was found in a 1964 Electronic Design. The circuit delays the firing of a load for a...
Found in a documentation from the 90's, this circuit already includes an amplification stage. The...