Re:250 people lost their jobs? (Score 1)

Just an FYI... AM radio stations now use this technique to replace huge oil-filled modulation transformers weighing thousands of pounds and standing 10ft or so high, (at least for the high-power (50kw) stations). AM transmission used to be done by "brute force", with this giant transformer and tubes weighing hundreds of pounds forming a gigantic audio amplifier which was mixed with the carrier frequency wave to produce the AM signal. Now, they just pulse-width-modulate the power supply producing the carrier wave and produce extremely good audio. The transmitted signal now can sound as good as monophonic FM, but is restricted artifically by bandwidth limits imposed by law ( You must "roll off" the signal at 7.5khz, equivalent to pushing the top keys of your graphic equalizer down all the way). However, most AM receivers suck really badly, so no one would notice the improvement unless they had pro monitoring equipment. It just saves money and weight and space.