Heard in Swansea: Hearts Beating in the U.S.A.

In the early hours of Sunday morning, Swansea once again found itself connected to the wider world through the invisible threads of wireless communication. At 1:15 a.m., Mr. Tom Robinson, of 7 Rodney Street and a respected member of the Swansea Radio Society, succeeded in receiving a remarkable transmission from the American broadcasting station KDKA of Pittsburgh, Pennsylvania, operating on a wavelength of 100 metres.

The Swansea Radio Society

The Swansea Radio Society, founded during the pioneering years of wireless telegraphy, had grown into a vibrant community of enthusiasts whose curiosity matched their technical skill. Swansea’s industrial character—its engineers, electricians, and mechanically minded workers—made it fertile ground for such a society. Their meetings, held in modest rooms cluttered with coils, valves, and home‑built receivers, were part workshop, part lecture, and part listening post.

Members prided themselves on pushing the limits of long‑distance reception, and transatlantic signals were regarded as the ultimate prize. Within this atmosphere of friendly rivalry, Mr. Robinson had earned a reputation for precision and patience. His aerials were finely balanced, his tuning exact, and his ear trained to catch the faintest whisper from across the ocean.

The Robinson Family of Rodney Street

1921 Census

The 1921 Census provides a fuller picture of the man behind the headphones. At that time, Tom Robinson, recorded as Thomas John, aged 45, was living with his family at 7 Rodney Street, Swansea—the very address from which he later achieved his celebrated transatlantic reception.

Thomas John was employed as a Blacksmith by Lloyd Bros., Builders & Contractors, a skilled and physically demanding trade that placed him firmly within Swansea’s industrious working community. His wife, Jennie, aged 40 and born in Cardiff, kept the household, while their daughter Edith, aged 18, worked as a Dressmaker for Ben Evans & Co. General Stores, one of Swansea’s best‑known commercial establishments. The household also included their youngest child, Nancy, aged just 3, whose earliest memories would have been shaped by a home filled with tools, wires, and the quiet crackle of wireless sets.

This domestic snapshot adds a human dimension to Robinson’s technical achievement: a working‑class family in a modest Swansea street, yet one whose front room became, for a moment, a listening post to the world.

KDKA: The Pioneer Voice Across the Atlantic

KDKA was already a station of international renown. Widely recognised as the first commercial broadcasting station in the world, it began scheduled transmissions on 2 November 1920, when the Harding–Cox election results were read from a small wooden shack atop the Westinghouse Electric building in East Pittsburgh.

Its origins lay in the experimental station 8XK, operated by Westinghouse engineer Frank Conrad, whose informal broadcasts of phonograph music had demonstrated the public appetite for wireless entertainment. Westinghouse executives, recognising the potential, secured a commercial licence and launched KDKA as a station of firsts: the first live sporting broadcasts, the first regular news bulletins, and some of the earliest demonstrations of radio’s capacity to shrink the world.

For British listeners, KDKA held a special fascination. Its powerful signal, combined with the experimental zeal of its engineers, made it one of the few American stations capable of reaching European shores. To hear it clearly in Swansea was not merely a technical achievement—it was a glimpse into the future of global communication.

The Demonstration Heard in Swansea

On this particular night, after a period of ordinary programming, the KDKA announcer declared that listeners were about to hear a demonstration of “the most sensitive microphone in the world,” manufactured by the Westinghouse Company and operated by Dr. Thomas, assisted by Dr. Howell Long.

What followed astonished even the seasoned experimenters of the Swansea Radio Society. The microphone was first placed upon the wrist of a man, and in Swansea the steady throb of his pulse sounded loud and unmistakably clear. Then came the pulse of an eleven‑year‑old girl, its quicker rhythm revealing a striking contrast. Finally, the announcer explained that the apparatus would be placed upon the breast of a patient, noting that listeners would observe that the beat was “above normal.”

Across thousands of miles of ocean, the sounds reached Swansea as distinctly as any British broadcast, a testament not only to American engineering but also to the skill and dedication of Swansea’s wireless amateurs.

South Wales Daily Post

As Reported in the South Wales Daily Post, April 1924

This extraordinary reception did not go unnoticed locally. The event was reported in the South Wales Daily Post in April 1924, which highlighted both the technical achievement and the growing sophistication of Swansea’s wireless community. The newspaper emphasised the clarity with which the heartbeats were heard, noting that the experiment was received “as loudly and clearly as an ordinary British broadcasting station.”

For readers of the time—many of whom had only recently encountered wireless sets in their own homes—the idea that a Swansea listener could hear the heartbeat of a patient in Pittsburgh must have seemed nothing short of miraculous. The article helped cement the Swansea Radio Society’s reputation as one of the most capable and forward‑looking amateur groups in Wales.

A Moment of Local Pride

For the Swansea Radio Society, Robinson’s reception of the experiment was more than a technical success—it was a moment of collective pride. It demonstrated that Swansea’s enthusiasts were not merely following the developments of the wireless age but participating in them. In the quiet of a Sunday morning, with headphones pressed to their ears, they heard the beating of hearts in America as clearly as if they were in the next room.