re history question in article kazel uiuc edu kazel uiuc edu mitch kazel writes sorry if this isn t the correct news group but a colleague of mine is trying to find out when the first public use of electronic voice amplification was i e a p a system any reference would be appreciated please reply via e mail mitch kazel n hdq internet kazel uiuc edu this is vague so i am posting it in case anyone else knows more i recall reading of a phonograph which used mechanical amplification compressed air was squirted out of a valve which was controlled by the pickup the result was noisy and distinctly lo fi but much louder than a conventional phonograph it tended to wear the disks out pretty quickly though paul paul johnson paj gec mrc co uk tel ext these ideas and others like them can be had gec marconi research is not for each from any reputable idealist responsible for my opinions
