This detector uses an unusual sensor today. The circuit is from an 80s documentation. Its sensitivity is 10 ppm. The transformer has two secondary voltages.
June 2016 - Mouser can immediately deliver the TPS54xx plate for experiments with Buck converters from...
This circuit that converts light intensity into frequency was found in Radio Electronics magazine from...
This is one of the many electronic dice that the reader can find on this site. The difference is that...