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 ...

2022年1月4日に、「グローバルオーディオトランスに関する市場レポート, 2017年-2028年の推移と予測、会社別、地域別、製品別、アプリケーション別の情報」の調査資料を発表しました。オーディオトランスの市場生産能力、生産量、販売量、売上高、価格 ...

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 ...

Having built a number of vacuum tube output transformer-less (OTL) amplifiers in recent years, it seemed as though it might be a good idea to try combining older with newer technology and using both ...