Found in July 1975, Radio Electronics magazine this circuit can use any operating circuit, including the 741. The circuit must use a symmetrical power source.
This circuit was found in an old European documentation from the 70's. The circuit directly drives...
This experimental circuit was obtained in a Radio Shack documentation from 1977. The transistor can be...
This astable multivibrator was obtained from a Mullard documentation from 1960. The components depend on...