Found in American documentation this circuit uses transistors of the time. The circuit can be made with current components. It works as a trigger working with 600 ohm signals.
Found in a Hands On Electronics from the 90s, this circuit can be easily assembled today, as the...
This 9 + 9 V symmetrical power supply was obtained in a 1977 symmetric publication but can still be...
This simple circuit for switching RF signals was found in an RF Design from the 90s. The circuit...