A pseudo-random pulser is presented suitable for applications in many fields of radiometric precision spectrometry. It is based on a maximum-length feedback shift register generator. The rules for structure and phase distance of the sequences to be connected for the output pulse initiation are following from the concept of the m · n-feedback shift register generator. By this means optimum statistical properties are guaranteed. They are illustrated by comparison of some measured parameters with those expected by reason of theoretical investigations or derived from a measured natural detector signal, respectively.