Found in a manual of integrated circuits from the 90s, this circuit makes use of that time components. It is indicated to limit the current in 6 V chargers.
This circuit was found in a NASA documentation from the 1980s. Component values are application...
This circuit is from a 1957 Raytheon transistor manual. The diode can be of general-purpose...
Found in an Electronic Design from the 80's, this circuit uses components from that time. He has...