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 ...

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 ...

Audio Note ignores trends again. The Oto SE 35 brings new transformers and PSU to the cult EL84 amp. Low power, big attitude. Hear it at AXPONA 2026.

Baluns enable impedance matching, minimize signal distortion, and suppress common-mode noise in RF and high-frequency designs ...

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 ...