Suggested by an old RCA manual, this circuit makes use of the period components. Data for the transformer is provided in the original documentation from the 1960s.
In the figure we have the simple way to obtain a digital inverter using a general-purpose...
This circuit works with only 1.5 V and can be powered by a solar panel. The circuit is from 1991....
This circuit was found in a 1969 EEE. The circuit uses transistors from the era that can be...