We found this circuit in the November 1975 issue of Radio Electronics magazine. It uses a digital module from the time with several adjustments. The power supply must have the indicated voltage.
This circuit generates sinusoidal and cosine signals of 2 kHz given basically by the values of C1...
This circuit was found in a Dutch documentation from 1970. The circuit makes use of semiconductors that...
This circuit has both frequency and duty cycle control. We found it in the October 1992 Radio...