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Appleton, Victor – Tom Swift Jr 18 – And the Electronic Hydrolung

“The leads from them,” Tom ended, “will be centralized in a single electronic control unit inside the ship. I’ll handle that part of it.”

“Great idea, Toml” Arv Hanson said admiringly.

“But what a job it’ll be rigging those transducers,” put in one of the technicians.

Tom nodded wryly. “You’re right, Danny. If this experiment works out, though, I think I can lick that problem on future installations.”

The young inventor explained that he hoped to find a way to mold the transducers into a continuous plastic sheet. This could be applied to the hull of a submarine in a single operation.

“But this time we’ll have to do it the hard way,” Tom added with an apologetic grin.

A jetmarine was hoisted into drydock and the work crew swarmed over it, rigging the transducers. Would his experiment succeed? Tom wondered.

Hopefully, he set to work assembling the electronic control unit.

Bud helped the men on the hull for a while, then descended through the hatch to see how Tom was progressing.

114 THE ELECTRONIC HYDROLUNG

“I’d go gaga trying to keep track of those circuits,” Bud said, as he watched Tom installing the delicate transistors and other components with an electric soldering gun.

The young inventor grinned. “It’ll be simple enough when the control unit’s all put together,” he replied. “Just a single on-off switch and one test circuit.”

By noon, after working at a frenzied pace, the job was done. Tom thanked each one of the men personally. Then everyone went to eat lunch.

After the meal, Hank Sterling asked, “How about a detection test to see how she works?”

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