This switched or switched regulator was suggested by Texas Instruments in one of its application manuals. The circuit converts 5 V input to 12 V output with a current up to 75 mA.
This source was found in Philips' 60s documentation. The transistors are from the era and the...
This circuit is the digital indicator for the previous circuit and can be used with similar...
Found in a 90s Electronic Design, this circuit operates with Maxim components of the time. The...