This 800 Hz sinusoidal oscillator was found in a 1970s American documentation. The transistor supports a modern general-purpose equivalent. The frequency is given by the RC network that can be changed.
This old taster circuit, found in 1970s American documentation, is for operatives and comparators of...
We found this circuit in the Texas Instruments opto-electronics manual. The button resets and the...
This filter was found in the May 1989 issue of Radio Electronics magazine. The power supply must...