Electric System Operation
a telephone line) to the remote-control equipment. This consists ... 5-31). Instrument ponel Transmittera#39;s omplifier ond relay Receiver Coupling unit Overlnod reloy PIG. 5-29. ... Here, the loud-speaker is housed in the amplifier, though the schematic diagram of Fig. 5-28 shows it separated for clarity. Assume that the district operator wishes to get in touch with one of the traveling operatora#39;s cars. He pushesanbsp;...
| Title | : | Electric System Operation |
| Author | : | Bernhardt G. A. Skrotzki |
| Publisher | : | - 1954 |
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