Explore "The Nameless Something" by Murray Leinster on Textopian. Read with annotations and highlights.
At this, Bud Gregory sweated profusely. His hands shook. There were two radio tubes and a cryptic assortment of coils and condensers and resistors in the gadget he had mounted on a bit of plank.
He'd obviously worked on it for some time before he'd come in to talk to Murfree, but it did not look like anything. Except for the quite improbable coils -- and no physicist in the Bureau of Standards had been able to work out what similar coils in Murfree's sample device did, or on what principle they were based. Apparently there was nothing in sight that a ten-year-old boy might not have gimmicked together at random.