By Paul D. Colford
STAFF WRITER

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RUCE CHARLES, REID COLLINS, Jim Van Sickle, Peggy Stockton, Christopher Glenn, Ike Pap-pas, Jim Gash, Bob Hagen, Steve Bell, Bill Diehl, Alan Walden, Edward Brown . . . In years long past, they were the reporters in WNEW-AM / 1130's mighty news department. Every half-hour, around the clock, the Frank Sinatra music would give way to their newspapers of the airwaves.
   Remember Brown? Before joining Walden at NBC Radio's short-lived News and Information Service in the mid-'70s, this erudite and sonorous journalist anchored some of those reports. And impossible as it is to believe in 1991, WNEW-FM not only used to simulcast those newscasts throughout its own broadcast day, but in the evening the rock station would cut away from

Cream and Jimi Hendrix to air a five-minute commentary from Brown about the Vietnam War and other issues of the day. You could say it was a time when rock-and-roll listeners were told what the Board of Estimate was, told what the mayor was up to, told about the United Nations - and still got the Rolling Stones.
   Sure, WNEW-AM and WNEW-FM are no longer owned by the same company, but the fact is that Westwood One, the managing partner of WNEW-AM, last Friday finally cut all ties to that great news heritage. As reported here Saturday, Westwood dismissed Mike Eisgrau, WNEW-AM's remaining street reporter. In 24 years at the station, he had sat through a million news conferences, followed hundreds of political campaigns, poked his way through at least four racial flare-ups and was helicoptered in to cover one Woodstock music festival. A purely economic move, Westwood explained - in