This 80's circuit uses an audio amplifier to obtain a symmetrical source from a single source. The maximum current is on the order of 1.3 A and the input voltage must not exceed 20 V.
This circuit trips when the input voltage exceeds 30 V. Its base is a DIAC and it can be used to...
This conventional window comparator configuration was found in an old documentation. It is valid...
This circuit with JFET and Unijunction was found in an ancient American documentation. The...