| 1. | The earliest telephones used telegraph lines, or open-wire single-wire earth return circuits.
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| 2. | Single-wire earth return ( SWER ) is the least expensive, with one wire.
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| 3. | Single wire earth return is also used for HVDC over submarine power cables.
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| 4. | Earth return for unipolar operation is provided by buried graphite electrodes at each station.
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| 5. | Following this decision, on 23 September 1974, the station's Earth return capsule was released.
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| 6. | They placed some film in the Earth return capsule.
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| 7. | A dodgy earth return is the next most likely thing-but it's way, WAY less likely.
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| 8. | The Earth Return Vehicle is a two-stage vehicle.
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| 9. | The faulty earth return cable was replaced.
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| 10. | Finally, he pushes a button on his remote control to blow up the last remaining Earth return rocketship.
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