This commercial 6-digit clock circuit was found in August 1976 Radio Electronics magazine. Note the supply voltages and the use of a period module.
The oscillator shown in the figure generates a 1 kHz tone that is reproduced on the speaker with...
If the reader has an old MSX still working, it can be used as a microcontroller for your robotics...
This circuit supplies a continuous voltage at its output, which is the peak value of the...