Found in a November 1977 Radio Electronics magazine, this digital circuit was described in an article that taught how to assemble it. The 6-digit circuit is a clock.
This circuit with regenerative action was found in the June 1986 issue of Radio Electronics...
This circuit, shown in the figure, is also suggested by Texas Instruments and shows how to control...
The speed of the motor connected to this circuit depends on the amount of light that strikes the...