This sequential tone generator circuit was found in the July 1980 issue of Radio Electronics magazine. It uses well-known integrated circuits. The tones are generated by programming resistors.
Suggested by the General Electric Hobby Manual of 1965 this circuit measures voltages from 0 to...
The circuit shown in the figure is recommended for applications where a visual indication is...
This circuit is from the 1993 Motorola Linear Interface ICs. Equivalent operating may be used and...