This circuit was found in the 1961 RCA tube manual. The circuit includes a power supply stage.
This was the original title given by the publication of the 80s in which we found it. Similar...
This circuit for analog video signals was found in a 90s 303 Circuits. The used digital switch is...
This circuit mimics the trill of a bird. We found it in an American documentation from the 90s. It is...