CHAPTER XIX
CONSTRUCTION AND DESTRUCTION
Bill and Gus worked long hours and diligently. All that the power plant construction had earned for Bill, the boy had turned in to help his mother. But Mr. Grier, busy at house building and doing better than at most other times, was able to add something to his boy's earnings, so that Gus could capitalize the undertaking, which he was eager to do.
The layout of the radio receiver outfits to be built alike were put at first on paper, full size; plan, side and end elevations and tracings were made of the same transferred to heavy manila paper. These were to be placed on the varnished panels, so that holes could be bored through paper and panel, thus insuring perfect spacing and arrangement. Sketches, also, were made of all details.
The audion tubes, storage batteries and telephone receivers had been purchased in the city. Almost all the other parts were made by the boys out of carefully selected materials. The amplifiers consisted of iron core transformers comprising several stages of radio frequency. The variometers were wound of 22-gauge wire. Loose couplers were used instead of the ordinary tuning coil. The switch arms, pivoting shafts and attachments for same, the contact points and binding posts were home-made. A potentiometer puzzled them most, both the making and the application, but they mastered this rather intricate mechanism, as they did the other parts.
In this labor, with everything at hand and a definite object in view, no boys ever were happier, nor more profitably employed, considering the influence upon their characters and future accomplishments. How true it is that they who possess worthy hobbies, especially those governed by the desire for construction and the inventive tendency, are getting altogether the most out of life and are giving the best of themselves!
The work progressed steadily—not too hastily, but most satisfactorily. Leaving at supper time, Bill's eyes would sparkle as he talked over their efforts for that day, and quiet Gus would listen with nods and make remarks of appreciation now and then.
"The way we've made that panel, Gus, with those end cleats doweled on and the shellacking of both sides—it'll never warp. I'm proud of that and it was mostly your idea."
"No, yours. I would have grooved the wood and used a tongue, but the dowels are firmer."
"A tongue would have been all right."