General Radio Type 716-C Capacitance Bridge Operating Instructions 1963

General Radio Type 716-P4 Guard Circuit Operating Instructions 1965

General Radio GR Type 716-C Capacitance Bridge Operating Instructions 1954

General Radio Type 716-C Capacitance Bridge Operating Instructions 681-J 1958

General Radio Type 1651-A Bolometer Bridge Operating Instructions 736-C May 1955

General Radio Type 544-B Megohm Bridge Operating Instructions 458-G 1951

General Radio Type 544-B Megohm Bridge Operating Instructions 458-L 1959

General Radio Type 544-B Megohm Bridge Operating Instructions 458-M 1962