This circuit is from the 1992 Radio Electronics Handbook. The components used are from the period, with emphasis on the 2-digit display driver.
This circuit was obtained in a General Electric documentation from the 80's, and can be used as a...
This circuit with a dual power supply generates sinusoidal, triangular and rectangular signals. We found...
In addition to tone control, this circuit of the SGS 1982 linear integrated circuit manual has a...