This circuit was found in an American documentation from the 80's. The components are from that time. It provides a variable output of 18 to 30 V with a current of 200 mA.
We found this circuit in a 1999 publication. All the components used are still common and the...
The purpose of this circuit is to prevent TTL circuits from receiving a voltage greater than 5 V...
This circuit allows you to read resistors up to 20 M ohms, converting it into voltage. The circuit is...