a compact line illuminator for applying an oscillating signal to buried or otherwise inaccessible pipes , cables and conductors so that their location can be traced by detecting an electromagnetic signal emitted by these buried objects . the illuminator includes a circuit for generating a signal suitable for tracing a buried conductor and a holder for a portable power source that can energize the circuit . first and second leads each have a first end connected to the circuit and a second end connected to a corresponding mechanism such as an alligator clip for attaching to a buried conductor . a case encloses the circuit and the portable power source holder and is configured for having the first and second leads wrapped around an exterior of the case . mechanisms are provided for holding the leads wrapped around the exterior of the case .