Found in a 1980’s documentation, this circuit must have its signal applied to an amplifier stage. The unijunction transistors can be 2N2646.
This window comparator configuration is from a 1980 publication. It is a conventional circuit that...
This isolated shield for triac was found in old European documentation. The resistor R1, in fact,...
August 2016 - It can be obtained from Mouser Electronics the new pressure transducer M5600 from TE...