This circuit was found in a 1967 Electronic Design and can be adapted to use modern equivalent components. The circuit provides a symmetrical voltage with the same value as the single input voltage.
This 1 kHz oscillator was found in the February 1970 issue of Radio Electronics magazine. It uses...
The 723 integrated circuit is manufactured by several semiconductor companies with different...
This is a combined circuit of tone generator and preamplifier. We found it in a 1975...