This circuit, which can act as a shield, was found in a 1990 PE Hobbyst Handbook. The circuit generates logic pulses for different types of applications.
This simple circuit has three electrodes that indicate the level using mercury in a small...
We found this circuit in the 1982 SGS linear integrated circuit manual. The L149 is not common today...
This symmetrical or dual source without regulation is indicated for the feeding of experimental projects...