General Radio Shielded Transformer model 578-C

This transformer is provided with two shields, one around each winding. A third shield effectively grounds the core laminations. The transformer is attached to a wooden board with binding knobs for use in laboratories. Front center view.

Figure 1: Front center view of the shielded transformer.

This transformer is provided with two shields, one around each winding. A third shield effectively grounds the core laminations. The transformer is attached to a wooden board with binding knobs for use in laboratories. Side corner view.

Figure 2: Side corner view of the shielded transformer.

This transformer is provided with two shields, one around each winding. A third shield effectively grounds the core laminations. The transformer is attached to a wooden board with binding knobs for use in laboratories. Back center view.

Figure 3: Back center view of the shielded transformer.

Transformers are used for power transmission in electric circuits. Type 578 shielded transformer is necessary in a direct reading a -c bridge to isolate the bridge from changes of electrostatic potential in the external circuit and to reduce the effect of the capacitance of this external circuit to ground. It is also useful in other types of circuits to isolate measuring circuits from the generator and to produce a balanced output from a grounded generator.