This sophisticated circuit for the 90s car was found in the 1993 edition of Radio Electronics Special Projects. It uses components that are still common today.
This circuit is based on the Texas Instruments LMC662 and has the function of monitoring the audio...
Yes, tunnel diodes can also be used in voltage regulators, as shown in this circuit from a Radio...
Based on operational amplifiers of the time, this circuit from the 1980s has high input impedance. The...