Abstract: An electric heater 1 comprising a linear heater body 20 accommodated in a heat transfer tube 10, wherein a bent-back part 24 of the heater body 20 is formed inside the heat transfer tube 10 such that a pair of ends 26a and 26b emerge from a first-end side of the heat transfer tube 10, and the heater body 20 comprises a heating part 25 formed so as to extend along a part of the heat transfer tube 10 and a lead part 26 capable of electrically connecting the heating part 25 to the outside of the heat transfer tube 10. The electric heater 1 can be inserted into a narrow space and perform topical heating.

Abstract: An electric heater 1 comprising a linear heater body 20 accommodated in a heat transfer tube 10, wherein a bent-back part 24 of the heater body 20 is formed inside the heat transfer tube 10 such that a pair of ends 26a and 26b emerge from a first-end side of the heat transfer tube 10, and the heater body 20 comprises a heating part 25 formed so as to extend along a part of the heat transfer tube 10 and a lead part 26 capable of electrically connecting the heating part 25 to the outside of the heat transfer tube 10. The electric heater 1 can be inserted into a narrow space and perform topical heating.

Abstract: The present invention is directed to a high frequency extrafine pair cable, wherein a pair cable is accommodated in a shield tube assuming the form of a hollow cylinder, the pair cable comprising two insulation coated wires each comprising an inner conductor and an insulator layer formed on an outer circumference of the inner conductor, and a space is present between the pair cable and an inner surface of the shield tube in a region other than the region where a part of the pair cable is in contact with the inner surface of the shield tube. The high frequency extrafine pair cable has excellent electrical characteristics, such as low transmission loss, and enables implementation of an extrafine cable structure. The invention is also directed to a method for manufacturing the same.