On This Day in Telephone History May 7TH 1963

On This Day in Telephone History May 7TH 1963 Telstar 2 placed in orbit to learn further how to overcome the effects of radiation and extend the useful life of communications satellites in space. TELSTAR 2 was essentially identical to the Telstar 1 satellite. Telstar 2 differed from Telstar 1 by employing provisions for scientific information to be transmitted in real time via the microwave telemetry system so that telemetry could be obtained after the 2 year timer had turned off the VHF beacon. On May 16, 1965, at 1403 UT, during the satellite's 4736 orbit, the VHF transmitter was turned off. All systems operated normally until that time.

On This Day in Telephone History May 7TH 1963 Telstar 2 placed in orbit to learn further how to overcome the effects of radiation and extend the useful life of communications satellites in space. TELSTAR 2 was essentially identical to the TELSTAR 1 satellite. Telstar 2 differed from Telstar 1 by employing provisions for scientific … Read more

On This Day in Telephone History May 4TH 1875

On This Day in Telephone History May 4TH 1875 Alexander Graham Bell Conceived of using Varying Resistance. Alexander Graham Bell conceived of using varying resistance in a wire conducting electric current to create a varying current amplitude. Bell wrote in a letter to Gardiner Greene Hubbard: “a continuous current of electricity passed through a vibrating wire should meet with varying resistance, and hence a pulsatory action should be induced in the current”

Alexander Graham Bell conceived of using varying resistance in a wire conducting electric current to create a varying current amplitude. Bell wrote in a letter to Gardiner Greene Hubbard: “a continuous current of electricity passed through a vibrating wire should meet with varying resistance, and hence a pulsatory action should be induced in the current” … Read more

On This Day in Telephone History May 1ST 1877

On This Day in Telephone History May 1, 1877, the First Telephones Rented For Business Use on a Private Line. Roswell C. Downer rented the First Telephones for business use on a private line between Boston and Somerville. From Downer's home, at 170 Central St., Somerville, to the office of Stone & Downer, Bankers, 28 State St., Boston (3 miles)

First Telephones Rented For Business Use on a Private Line. Roswell C. Downer rented the First Telephones for business use on a private line between Boston and Somerville. From Downer’s home, at 170 Central St., Somerville, to the office of Stone & Downer, Bankers, 28 State St., Boston (3 miles)

On This Day in Telephone History April 30TH 1916

On This Day in Telephone History April 30TH 1916 Enrico Caruso Sang over the Transcontinental Telephone Line

Enrico Caruso sang over the transcontinental telephone line from Atlanta, GA to San Francisco. At 4:00 a.m. on April 30, 1916, a near-capacity audience at the Tivoli listened to Enrico Caruso sing in Atlanta, Georgia, over Pacific and American Bell Telephone long-distance lines at the San Francisco Press Club’s “Ten Years After” commemoration of the … Read more