| 摘要 |
PURPOSE: To provide a single tool adapted to a wide range of a heater in all of a size, shape and output. CONSTITUTION: A heater apparatus forms a portable lightweight tool and this tool is equipped with a core and at least the primary winding of a transformer having a secondary winding fixedly or selectively connected to a heater having a bifilar winding reducing magnetic radiation. The apparatus is planned so that the voltage generated in the portable tool does not substantially exceed 100 volt and is lower than 100 volt usually. The core of the transformer has a leg part detached from the shape of the closed core to be rotatable in the case used in an apparatus wherein a secondary winding is fixedly connected to a heater winding and, by this constitution, the other one leg part of the core having a wound primary winding is inserted into the secondary winding. Or, the secondary winding can be wound around the short part of the core capable of being inserted in the core of the transformer having the primary winding wound therearound. |
