| 摘要 |
This circuit 10 is intended to be connected to a differential transformer TD. It comprises an adjustable dipole 20 and an adjustable-gain amplifier 30. The dipole is connected to the balancing ports 3, 3' of the transformer and the amplifier is connected between the ports 2, 2' and 3, 3' intended to receive the four-wire line. Application to the balancing of telephone or data transmission installations. <IMAGE>
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