Welch Lecture Table Meter

DCS Code: 5H50.16 Last Updated: March 27, 2026
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Safety Warnings

Purpose

Demonstrates the operating principle of a d'Arsonval (moving-coil) galvanometer. The open construction allows students to see the coil, magnet, and suspension while the schematic on the dial face illustrates the circuit configurations.

Welch galvanometer with black metal casing, semicircular scale marked -5 to +5, open window showing internal coil mechanism, schematic diagram on face, and binding posts on front panel
Figure 1: The Welch galvanometer features an open design showing the moving coil mechanism. The schematic on the dial face shows VOLTS, AMPS, and SHUNT terminal configurations.