Twenty pairs of wires thus result in 150 communication circuits, 80 of them being telegraph circuits and 70 of them telephone circuits. Dr. Luschen also gave interesting particulars of tests made ...

including reaction patents for wireless receiver circuits, the early British broadcasting stations, directional receiving systems for long-wave communication circuits, rotating beam aerials ...

But adding stretchable wireless communication circuits to these sensors has been difficult. Those radio frequency (RF) circuits rely on diodes, semiconductor devices that help convert AC power to ...