This circuit generates 500 Hz rectangular signals. The circuit is from old American documentation. Neon lamps are of common types.
This circuit was obtained in the publication 101 Electronics Projects of 1979. The circuit can be...
We found this circuit in Motorola's Linear Databook in 1990. The circuit has high input impedance, and...
This circuit was found in the February 1993 issue of Radio Electronics magazine. Some components depend...