We found this circuit in a Maxim documentation from the 90s. The 4-channel circuit uses a component of the time and has a supply current of only 6 uA.
This traditional rectangular oscillator configuration generates signals up to a few megahertz...
This circuit is just a curiosity found in a 1990 documentation, since the integrated circuit used...
This circuit goes into operation producing a sound on a small speaker when the supply voltage...