1. Vacuum Tube — 2022-01-12 08:49:37

   … electronic warfare equipment, telecommunications repeaters and much more. {{Tag ids="Valve Electronic Tube Thermionic amplification "}} …

2. Loudspeaker — 2021-11-07 21:26:37

   …rinciple of the conventional cone loudspeaker drivers that we know today. == Power == What this invention needed was amplification and that came along with the [[Thermionic_valve|valve]]. With more power bigger magnets and cones could now be used. …

3. Marshall Amplification — 2021-08-29 20:23:50

   …Marshall Amplification :: === Jim Marshall 1962 === ~-[[CategoryIndustry]]:[[Music]]:[[1900s]] {{Databox Image="JimMarshall.jpg" class="right"…
   … **Ritchie Blackmore, Big Jim Sullivan and Pete Townshend.** But they were all frustrated at the poor quality of guitar amplification available at the time, mainly //Fender// from USA. They wanted something "bigger and louder", and Jim Marshall saw an o…
   …pportunity. {{Image url="MarshallWall.jpg" class="left" title="Marshall Wall" width="300" }} == Marshall Amplification is Born == He took on 18-year-old electronics apprentice, Dudley Craven, resulting in the foundation of **Marshall Amp…

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