spark-gap

Equivalent circuit of a valve-type arrester - 1 spark-gap, 2 load resistance, 3 spark-gap capacitance, 4 earth capacitance

8. Protective, control and supervisory systems as important additional equipment for power installations Frank Ponemunski 1991

All she had to do was find a radio—or even make a simple spark-gap transmitter out of a battery and a wire—and send an SOS.

Mudd in Your Eye Jerry Oltion 1990

All she had to do was find a radio—or even make a simple spark-gap transmitter out of a battery and a wire—and send an SOS.

Mudd in Your Eye Jerry Oltion 1990

All she had to do was find a radio—or even make a simple spark-gap transmitter out of a battery and a wire—and send an SOS.

Mudd in Your Eye Jerry Oltion 1990

The powerful sparks that were leaping across the spy's spark-gap told him that a battery of considerable force was being used, and he knew that

The Secret Wireless or, The Spy Hunt of the Camp Brady Patrol Lewis E. Theiss

The earth-end would be attached to the telephone receivers and to the apparatus, consisting of a spark-gap wheel and other instruments designed to send into space the electrical impulses that could be broken up into dots, dashes and spaces, spelling out words according to the Morse or Continental code -- whichever was used.

Dick Hamilton's Airship, or, a Young Millionaire in the Clouds Howard Roger Garis 1917

The crashing of sparks over the spark-gap had ceased for the present, and Joe, reporting that there was no wireless craft within reach of his limited aerials, was on deck once more, waiting until the time should come around for another trial.

The Motor Boat Club and The Wireless Or, the Dot, Dash and Dare Cruise 1895

In the meantime Joe, at the powerful sending apparatus below, sent the spark leaping across the spark-gap, and, dashing up the aerials, there shot into space the electric waves intended to be gathered in by any other wireless operator within fifty or sixty miles.

The Motor Boat Club and The Wireless Or, the Dot, Dash and Dare Cruise 1895

The crash of his call soon sounded at the spark-gap and quivered on its lightning way up the aerials.

The Motor Boat Club and The Wireless Or, the Dot, Dash and Dare Cruise 1895

Almost immediately after Dawson disappeared the crash of the spark across the spark-gap and up the wires was heard.

The Motor Boat Club and The Wireless Or, the Dot, Dash and Dare Cruise 1895