This amplifier for analog video signals was found in documentation from the 90s. The 1.5Vpp signal at 75 ohms.
This circuit was found in old American documentation. Transistor is general purpose and relay is...
This simple alarm with latching uses a relay as the main element. The circuit is from a Radio...
This circuit is from an Italian publication called Fare Elettronica from 1987. What we have is an...