Abstract: Two thermocouple junctions of a gas-turbine thermocouple probe are provided by junctions between respective pairs of wires that form the inner conductors of a metal-sheathed mineral-insulated cable. External electrical connections to the pairs of wires are established at a ceramic support block into which the cable extends, the connection in each case being made by a thicker wire that extends completely through the block from the opposite direction of the cable, and then turns back on itself to extend through the block again and emerge adjacent the end of the cable. The thin inner conductors of the cable are twisted about the projecting ends of their respective connecting wires and welded to them to complete the connections.