This circuit generates sinusoidal signals that depend on the input oscillator. The circuit is from a Radio Elecrtronics from April 1988. The signals are in the range of a few hundred kilohertz.
This circuit is based on the LM139, LM239 or LM339 series comparators and can be powered by...
For the component values used in thisf this circuit, the frequency can be adjusted between 740 Hz and...
This circuit uses a 100 kHz crystal, but nearby frequencies can be obtained with appropriate...