09-02-2024, 08:42 PM
Hi
Some versions of ammeter had no terminals. They relied instead on sensing the magnetic field around a current carrying wire. The (insulated) wire would be held in place across the back of the instrument with a clamp. Sometimes there would be an extra loop of wire to double up the sensitivity.
The outer diameter of the chrome bezel is 1.75 inches for the type in the post above.
Some versions of ammeter had no terminals. They relied instead on sensing the magnetic field around a current carrying wire. The (insulated) wire would be held in place across the back of the instrument with a clamp. Sometimes there would be an extra loop of wire to double up the sensitivity.
The outer diameter of the chrome bezel is 1.75 inches for the type in the post above.