[Jeffhs]

That was one way to get the HV working in a TV in which the efficiency coil was shorted (or if the coil core, which was iron and often grounded, shorted to the winding)--simply remove the coil from the circuit. The set would now operate normally although, as another poster noted, it would no longer be possible to make adjustments to allow for weak tubes and/or components. Note, however, that if the core of the efficiency coil shorts to the winding, the coil will smoke and the HV will be lost immediately.