[Amps] ampliphase and hybrid am mod circuits
Dave Haupt
emailw8nf at yahoo.com
Thu Jan 27 13:44:33 EST 2005
When I was but a wee 14 year old, I toured WKZO radio,
590kHz, in Kalamazoo, Michigan. The Chief engineer
was Maury W8EMD who became one of my elmers. The
transmitter was a 5kW RCA Ampliphase system, and Maury
always said, "There are no transformers in the audio
chain, and nowhere is there more than 1/2 watt of
audio. The frequency response is clean to over
10kHz". I borrowed a TRF receiver to listen to the
station later with a wide filter and sure enough, the
fidelity seemed equal to typical FM. It made quite an
impression on a youngster. The station was talk and
sports, so the fidelity, IMO was wasted on things that
didn't need it.
Maury is now 91, I think in a nursing home and not
active on radio or the internet.
73,
Dave W8NF
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