Found in American documentation from the 1990s, this circuit uses coils with multiple outlets to get the best reception, the diode is a general-purpose crystal diode.
This variable gain circuit for analog video signals was found in a 90s Linear Technology...
This conventional 3-terminal regulator circuit was found in an Electronics Now from the 90's. The...
This circuit generates a ladder signal to display on an oscilloscope the family of curves for...