This amplifier for recording heads was found in a Radio Electronics from September 1963. The circuit uses period transistors but can be modified to work with modern transistors.
This circuit inverts the signal of any logic using a general purpose PNP transistor. The supply...
This Industrial Track or overhead crane slows down when it detects more objects. The circuit has a...
This stage of IF to 455 kHz operates with voltages from 1.5 V. We find it in a 90s Popular...