This circuit with a dual power supply generates sinusoidal, triangular and rectangular signals. We found it in the magazine Electronics Now of January 1996. The frequency goes up to a few megahertz.
This is a circuit published in the January 1962 Radio Electronics magazine. The circuit is for...
This diagram was found in the November 1972 issue of Radio Electronics magazine in an article...
This circuit with the CK722 was found in a Raytheon publication from the 60's. The relay is of the...