TY - ART DB - Science History Institute DP - Science History Institute M2 - Courtesy of Science History Institute. Rights: Creative Commons Attribution 4.0 International License TI - Weston Ammeter Model 45 ID - ht24wj48w AU - Science History Institute DA - 2016/// YR - 2016 M3 - photograph UR - https://digital.sciencehistory.org/works/ht24wj48w AB - Finished wooden box; four metal feet on bottom (box must be set on its side for instrument to function); top of box has two brass holders for missing handle and metal strip; side lifts up half way exposing a painted metal instrument panel; panel has two cylindrical metal knobs on upper left side and a large meter in center; meter has a glass panel over a paper gauge; numbers on gauge range from 0 to 15; metal plaque on folded lid identifies manufacturer, model number, and serial number. Ammeters measure electric current--either alternating (ac) or direct (dc). KW - Ammeters KW - Weston Electrical Instrument Corporation LA - ER -