A non-sinusoidal 120 V voltage can be obtained with this circuit found in the December 1992 Radio Electronics magazine. The power is a few watts.
This circuit with low impedance output and 900k input impedance was found in the October 1993...
This oscillator for Morse code training was found in a Popular Electronics from the 90s. The...
This is another one of the many debouncer circuits that the reader can find on this site, and it...