How old are these cameras?

the american version of these cameras would have been produced from about 1990 to 1995. new products designed after 1995 would have been miniDV. these are all analog. the best of this group would be the Sony CCD-V5000E which has a good camera section, but unfortunately it uses analog Hi8 for recording. This camera was used widely in the US by fire departments, industrial trainers and schools.