Suggested by a 1968 documentation, this circuit limits the current of a regulator and can be adapted to other currents. The transistors are from the era.
The supplied circuit allows direct control of a small DC motor up to 250 mA. The basic component used...
This frequency band below 15 kHz converter was found in a Popular Electronics from the 90's. The...
If you have a common analog multimeter, you can increase its input resistance in the measurement of...