Using the 555 and 7400 this circuit was found in the September 1977 Radio Electronics magazine. The power supply must be made with a voltage of 5 V.
Found in documentation from the 1980s, this amplifier uses an integrated circuit from the time....
This circuit is from a Radio Electronics from November 1957. The circuit uses a relay depending on the...
It is a simple blinker that simulates the action of an alarm when installed on the dashboard of a...