This circuit was found in a 1977 documentation. With it we have the direct indication, through LEDs of an ASCII signal. The circuit must be powered by a voltage of 5 V.
The filter shown in the figure, suggested by Motorola, operates at a cut-off frequency of 1 kHz,...
The purpose of this circuit based on Maxim's MAX9022 is to find faults in multiple cables. The...
This circuit is suggested by Motorola in its 1990 Linear Databook. The speaker (or headphone is 32...