We found this 4.5 MHz amplifier for video signals from old analog TVs in the June 1992 issue of Radio Electronics magazine. It uses a 592 integrated circuit.
Found in an Elektor from the 90s, this circuit is based on components that are still common today....
This circuit was found in a Signetics documentation from the 1980s. Next to the figure are the...
This timer of 10, 25, 45 seconds and 5 minutes has its times selected by the keys. The circuit drives...