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Definition of "Automatic Telegraphs" |
Automatic telegraphs used machinery to transmit messages at higher speeds than those sent and received by Morse telegraph operators. Hand operators averaged 25-40 words per minute while the transmission speeds of automatic telegraphs ranged from 60-120 words per minute for the ink recording automatic telegraphs used in England to 500-1000 words per minute for Edison's chemical recording system. / Distribution Amplifier, or simply distribution amp or DA, is a device that accepts a single input signal and provides this same signal to multiple isolated outputs. |
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