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<DIV><FONT size=3>I don't have enough experience with the RCA heads to do a
detailed comparrison, but one simple thing that I liked about the RCA head was
that all 3 of the mounting screws were captive and exposed. Made for
easier removal and installation.</FONT></DIV>
<DIV><FONT size=3></FONT> </DIV>
<DIV><FONT size=3>As for design, didn't RCA have air-bearings
first? Ampex had rotary transformers first.</FONT></DIV>
<DIV><FONT size=3></FONT> </DIV>
<DIV><FONT size=3>Don Norwood<BR>Digitrak Communications, Inc.<BR><A
href="http://www.digitrakcom.com">www.digitrakcom.com</A></FONT></DIV></BODY></HTML>