Here’s a way of transmitting audio that makes it virtually impossible for someone else to listen in. Instead of sending radio waves bouncing all over creation, this uses the focused light of a laser ...

Here’s a way of transmitting audio that makes it virtually impossible for someone else to listen in. Instead of sending radio waves bouncing all over creation, this uses the focused light of a laser ...

Audio passed from lips to ears over short distances before the advent of radio. Broadcast changed that by using electronics to transport audio over great distances. As you know it starts with a ...

Pilot model 302 audio transformer. Marked: "Pilot No. 302 / Audio Freq. Transformer / Redi-Blox / Manufactured by / Pilot Electric Mfg. Co., Inc. / Brooklyn, New York, U.S.A." An audio output ...

In professional audio, analog interconnections between devices typically use “balanced” interfaces. At the source, a balanced output stage differentially drives two signal wires (theoretically with ...