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- Western Electric Transmitting Tube, Type 270-A, Used at Radio Station WWJ, Detroit, Michigan, circa 1935 - Vacuum tubes appear in older radios, televisions, amplifiers, computers, and other electronic devices. Their function: to amplify or transmit electronic signals. Typical tubes are sealed glass bulbs evacuated of gas, allowing electron flow to be influenced by an interior cathode, plate and grid. Perfected in 1906, the vacuum tube was the genesis of a communications revolution.
- 1936
- Collections - Artifact
Western Electric Transmitting Tube, Type 270-A, Used at Radio Station WWJ, Detroit, Michigan, circa 1935
Vacuum tubes appear in older radios, televisions, amplifiers, computers, and other electronic devices. Their function: to amplify or transmit electronic signals. Typical tubes are sealed glass bulbs evacuated of gas, allowing electron flow to be influenced by an interior cathode, plate and grid. Perfected in 1906, the vacuum tube was the genesis of a communications revolution.
- H. J. Heinz Company Private Telegraph Code Book, April 1916 - Before telephones, a telegraph was used to transmit messages. Once sent, the message was written or printed and delivered by hand. This was an expensive mode of communication (often charging per word), encouraging companies to create unique codes for phrases to reduce cost. This Telegraph Code Book was used by the H.J. Heinz Company.
- April 01, 1916
- Collections - Artifact
H. J. Heinz Company Private Telegraph Code Book, April 1916
Before telephones, a telegraph was used to transmit messages. Once sent, the message was written or printed and delivered by hand. This was an expensive mode of communication (often charging per word), encouraging companies to create unique codes for phrases to reduce cost. This Telegraph Code Book was used by the H.J. Heinz Company.
- Dow Jones Wire Service Report Clipboard, circa 1940 - In the routine course of business, Ford Motor Company received a steady flow of news and financial reports from the Wall Street Journal. These dispatches came over the teletype machine on November 22, 1963 describing events from the arrival of President John F. Kennedy and his wife Jacqueline in Dallas through the official report of his death several hours later.
- November 22, 1963
- Collections - Artifact
Dow Jones Wire Service Report Clipboard, circa 1940
In the routine course of business, Ford Motor Company received a steady flow of news and financial reports from the Wall Street Journal. These dispatches came over the teletype machine on November 22, 1963 describing events from the arrival of President John F. Kennedy and his wife Jacqueline in Dallas through the official report of his death several hours later.
- Teletype Message with Wire Service News Coverage of John F. Kennedy Assassination, November 22, 1963 - In the routine course of business, Ford Motor Company received a steady flow of news and financial reports from the Wall Street Journal. These dispatches came over the teletype machine on November 22, 1963 describing events from the arrival of President John F. Kennedy and his wife Jacqueline in Dallas through the official report of his death several hours later.
- November 22, 1963
- Collections - Artifact
Teletype Message with Wire Service News Coverage of John F. Kennedy Assassination, November 22, 1963
In the routine course of business, Ford Motor Company received a steady flow of news and financial reports from the Wall Street Journal. These dispatches came over the teletype machine on November 22, 1963 describing events from the arrival of President John F. Kennedy and his wife Jacqueline in Dallas through the official report of his death several hours later.
- Teletype Message with Wire Service News Coverage of John F. Kennedy Assassination, November 22, 1963 - In the routine course of business, Ford Motor Company received a steady flow of news and financial reports from the Wall Street Journal. These dispatches came over the teletype machine on November 22, 1963 describing events from the arrival of President John F. Kennedy and his wife Jacqueline in Dallas through the official report of his death several hours later.
- November 22, 1963
- Collections - Artifact
Teletype Message with Wire Service News Coverage of John F. Kennedy Assassination, November 22, 1963
In the routine course of business, Ford Motor Company received a steady flow of news and financial reports from the Wall Street Journal. These dispatches came over the teletype machine on November 22, 1963 describing events from the arrival of President John F. Kennedy and his wife Jacqueline in Dallas through the official report of his death several hours later.
- Teletype Message with Wire Service News Coverage of John F. Kennedy Assassination, November 22, 1963 - In the routine course of business, Ford Motor Company received a steady flow of news and financial reports from the Wall Street Journal. These dispatches came over the teletype machine on November 22, 1963 describing events from the arrival of President John F. Kennedy and his wife Jacqueline in Dallas through the official report of his death several hours later.
- November 22, 1963
- Collections - Artifact
Teletype Message with Wire Service News Coverage of John F. Kennedy Assassination, November 22, 1963
In the routine course of business, Ford Motor Company received a steady flow of news and financial reports from the Wall Street Journal. These dispatches came over the teletype machine on November 22, 1963 describing events from the arrival of President John F. Kennedy and his wife Jacqueline in Dallas through the official report of his death several hours later.
- Teletype Message with Wire Service News Coverage of John F. Kennedy Assassination, November 22, 1963 - In the routine course of business, Ford Motor Company received a steady flow of news and financial reports from the Wall Street Journal. These dispatches came over the teletype machine on November 22, 1963 describing events from the arrival of President John F. Kennedy and his wife Jacqueline in Dallas through the official report of his death several hours later.
- November 22, 1963
- Collections - Artifact
Teletype Message with Wire Service News Coverage of John F. Kennedy Assassination, November 22, 1963
In the routine course of business, Ford Motor Company received a steady flow of news and financial reports from the Wall Street Journal. These dispatches came over the teletype machine on November 22, 1963 describing events from the arrival of President John F. Kennedy and his wife Jacqueline in Dallas through the official report of his death several hours later.
- Western Electric Type 88A Amplifier Used by Detroit News Station W8XWJ, 1936 -
- 1936
- Collections - Artifact
Western Electric Type 88A Amplifier Used by Detroit News Station W8XWJ, 1936
- Western Electric Model 16B Transmitter Used by Detroit News Station W8XWJ, circa 1935 -
- circa 1935
- Collections - Artifact
Western Electric Model 16B Transmitter Used by Detroit News Station W8XWJ, circa 1935
- Teletype Message with Wire Service News Coverage of John F. Kennedy Assassination, November 22, 1963 - In the routine course of business, Ford Motor Company received a steady flow of news and financial reports from the Wall Street Journal. These dispatches came over the teletype machine on November 22, 1963 describing events from the arrival of President John F. Kennedy and his wife Jacqueline in Dallas through the official report of his death several hours later.
- November 22, 1963
- Collections - Artifact
Teletype Message with Wire Service News Coverage of John F. Kennedy Assassination, November 22, 1963
In the routine course of business, Ford Motor Company received a steady flow of news and financial reports from the Wall Street Journal. These dispatches came over the teletype machine on November 22, 1963 describing events from the arrival of President John F. Kennedy and his wife Jacqueline in Dallas through the official report of his death several hours later.