![Long wave transmitter masts at a Marconi radio station at Berne,... Photo d'actualité - Getty Images Long wave transmitter masts at a Marconi radio station at Berne,... Photo d'actualité - Getty Images](https://media.gettyimages.com/id/463913783/fr/photo/long-wave-transmitter-masts-at-a-marconi-radio-station-at-berne-switzerland-c1925.jpg?s=1024x1024&w=gi&k=20&c=wAnFWN9lU-11RO5Ox0cskUI4kZxZQVmI8qEVCKb-qhg=)
Long wave transmitter masts at a Marconi radio station at Berne,... Photo d'actualité - Getty Images
IETLibrary-Archives on X: "#OTD the first transatlantic telephone service from New York to London opened in 1927. This image shows the 200 kw long- wave single-sideband transmitter designed and installed by Standard Telephones
![Practical wireless telegraphy; a complete text book for students of radio communication . l-S. Fig. 16Sa—Standby Long Wave Adjustment of Marconi Type 107a Tuner. cerusite. When the latter detector is employed, Practical wireless telegraphy; a complete text book for students of radio communication . l-S. Fig. 16Sa—Standby Long Wave Adjustment of Marconi Type 107a Tuner. cerusite. When the latter detector is employed,](https://c8.alamy.com/comp/2CRKREH/practical-wireless-telegraphy-a-complete-text-book-for-students-of-radio-communication-l-s-fig-16sastandby-long-wave-adjustment-of-marconi-type-107a-tuner-cerusite-when-the-latter-detector-is-employed-the-potentiometer-is-out-of-thecircuit-observance-next-should-be-made-of-the-binding-posts-from-which-wiresare-connected-to-the-receiver-circuits-and-to-the-contacts-of-an-aerial-change-overswitch-the-latter-when-open-protect-the-detector-and-head-telephones-from-theinduced-potentials-of-the-local-transmitter-l-s-2CRKREH.jpg)