Found in National Semiconductor documentation from the 1990s, this circuit switches video signals to 75-ohm lines. The components are from the period.
Found in a 90s Popular Electronics, this circuit is interspersed between the filter and the...
This circuit is from an 80's documentation. The integrated circuit is from the time and the...
This circuit was found in a 80s American documentation. The zener diodes determine the points of...