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I have merely tapped the power that the Earth has already absorbed for me. Come here." He led the way down the corridor to his laboratory, and switched on the lights. On the main laboratory bench was set up a complicated apparatus of many tubes and heavy bus bar connectors. From the final tube two thin wires ran to a long tubular coil.

When the hull was finished, there came the laborious work of installing the power plant and the tremendous power leads, the connectors, the circuits to the relays a thousand complex circuits. Much of it was standard: the molecular power tubes, the molecular ray projectors, the power tubes for the invisibility apparatus, and many other parts.

Now in the gigantic central power room there loomed two tremendous power collectors, and six smaller ray feed collectors. His next work was to reconnect the severed connectors and controls. Then he began work on the really new apparatus. Nothing he had constructed so far was more than a duplicate of existing apparatus, and he had been able to do it almost instantly, from memory.

You can make an oscillation choke coil by winding say 100 turns of No. 28 Brown and Sharpe gauge double cotton covered magnet wire on a cardboard cylinder 2 inches in diameter and 2-1/2 inches long. Transmitter Connectors.

Plans to that end were now rapidly maturing; but there would be needed among many other things every one of them new and novel dynamos, switchboards, regulators, pressure and current indicators, fixtures in great variety, incandescent lamps, meters, sockets, small switches, underground conductors, junction-boxes, service-boxes, manhole-boxes, connectors, and even specially made wire.

You can make an oscillation choke coil by winding say 100 turns of No. 28 Brown and Sharpe gauge double cotton covered magnet wire on a cardboard cylinder 2 inches in diameter and 2-1/2 inches long. Transmitter Connectors.

Then at last even these had been put in place, and with the aid of Fuller, Morey junior, and his own father, Arcot had connected their many complicated circuits. "Son," remarked Arcot senior, looking critically at the great switchboard, with its maze of connections, its many rheostats and controls, and its heavy bus bar connectors behind it, "no one man can keep an eye on all those instruments.

When they towed the two vessels far out into space, Loring put into practise the instruction he had received from DuQuesne concerning the complex armament of their vessel. He swung the beam-projector upon the Kondalian airship, pressed the connectors of the softener ray, the heat ray, and the induction ray, and threw the master switch.

A little experimentation soon showed how much of his mind that brain could contain. Then, from the inside, he studied that brain line by line, muscle and nerve channels and connectors, even more surely than he had been able to do before. The first thing he learned, and put into practice, was to make the dog sleep, so he wouldn't tire too much.