Siemens & Halske AC/DC Precision Ammeter

An instrument for measuring the current in a circuit. The manufacturer, Siemens & Halske, went on to become tech giant Siemens AG. This instrument was imported into the US by the James G Biddle Company.

Figure 1 : Siemens & Halske AC/DC Precision Ammeter

An instrument for measuring the current in a circuit. The manufacturer, Siemens & Halske, went on to become tech giant Siemens AG. This instrument was imported into the US by the James G Biddle Company.

Figure 2: Siemens & Halske AC/DC Precision Ammeter

An instrument for measuring the current in a circuit. The manufacturer, Siemens & Halske, went on to become tech giant Siemens AG. This instrument was imported into the US by the James G Biddle Company.

Figure 3: Siemens & Halske AC/DC Precision Ammeter

An instrument for measuring the current in a circuit. The manufacturer, Siemens & Halske, went on to become tech giant Siemens AG. This instrument was imported into the US by the James G Biddle Company. Dated 1847-99.