To make
it perfectly safe, they surrounded the wire, where it passed through
the scuttle and ceiling, with a fire proof asbestos bushing or sleeve.
In this work they received some advice from Dr. Dale, who chanced
to drop in.
All this work took some time, and it was nearly dark when they had
made all their connections, including the ground connection to a
water pipe.
On one corner of Bob's big table they had inserted a small knife-blade
switch in the leading-in wire, so that the set could be disconnected
from the aerial when not in use, or during storms so as to guard
against lightning.
When all was finished the boys viewed the result of so many hours
of hard work and planning with mingled feelings of delight at its
business-like appearance and apprehension that, after all, it might
not work.
"Gee, I'm almost afraid to try it," said Bob. "But we've got to find
out what rotten radio constructors we are some time, so here goes,"
and he produced his set of head phones. So did Joe and Herb, but
Jimmy was struck with a sudden unpleasant thought.
"Great Scott!" he exclaimed. "I've gone and left my set home. I'll
get it and come back as soon as I can," and he dived precipitately
out of the room.
"He didn't need to be in such a hurry," laughed Bob. "We could have
taken turns with ours.
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