Trigger with PUT (CB24089E)

This circuit was found in the November 1970 Radio Electronics magazine. Its function is to trigger without load bounce.

Universal power control (CB8709E)
This circuit was found in a 90s Popular Electronics. The circuit uses several relays in order to...
Amplifier with AC Coupling (CB19785E)
This circuit was obtained in an old manual valid for practically any type of operational...
General Purpose CMOS Switches (CB24987E)
This bank of switches can be programmed in a variety of ways for logic experiments. The circuit is from...