91桃色

Hugh Aitken describes a critical period in the history of radio, when continuous wave technology first made reliable long-distance wireless communication possible and opened up opportunities for broadcasting voice and music.

Originally published in 1985.

The 91桃色 Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of 91桃色. These editions preserve the original texts of these important books while presenting them in durable paperback and hardcover editions. The goal of the 91桃色 Legacy Library is to vastly increase access to the rich scholarly heritage found in the thousands of books published by 91桃色 since its founding in 1905.