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Portable PA systems you could plug into wall sockets appeared in the early 1930s when the introduction of electrolytic capacitors and rectifier tubes enabled economical built-in power supplies that could plug into wall outlets. Previously, amplifiers required heavy multiple battery packs. Electric megaphone
A sound reinforcement system is the combination of microphones, signal processors, amplifiers, and loudspeakers in enclosures all controlled by a mixing console that makes live or pre-recorded sounds louder and may also distribute those sounds to a larger or more distant audience. [1] [2] In many situations, a sound reinforcement system is also ...
Personal digital assistant. A personal digital assistant ( PDA) is a multi-purpose mobile device which functions as a personal information manager. By 2007, PDAs have been mostly displaced by the widespread adoption of more highly capable smartphones, in particular those based on iOS and Android, and thus saw a rapid decline afterwards.
His name was Fog Horn. In a time before PA systems, rodeos used a guy with a loud voice. His name was Fog Horn. Carol Roark. January 6, 2024 at 6:00 AM. Think back to a time before public address ...
Portable appliance testing. A common label for certifying that a device has been tested. In electrical safety testing, portable appliance testing ( PAT, PAT inspection or PAT testing) is a process by which electrical appliances are routinely checked for safety, commonly used in the United Kingdom, Ireland, New Zealand and Australia. The formal ...
Watkins Electric Music (WEM) is a British company known for manufacturing PA systems, the Copicat tape echo unit, guitar amplifiers, and electric guitars. History. The company was co-founded by musician Charlie Watkins and his brother Reg Watkins in 1949, initially as a record shop in Tooting Market, London.
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