<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META content="text/html; charset=US-ASCII" http-equiv=Content-Type>
<META name=GENERATOR content="MSHTML 8.00.6001.18828"></HEAD>
<BODY style="FONT-FAMILY: Arial; COLOR: #000000; FONT-SIZE: 10pt" id=role_body
bottomMargin=7 leftMargin=7 rightMargin=7 topMargin=7><FONT id=role_document
color=#000000 size=2 face=Arial>
<DIV>Dave</DIV>
<DIV> </DIV>
<DIV>You had the first ATC that RCA built for quads. It was the same size
as the Proc Amp and the Pix-Lock servo chassis. This was the equivalent of
the AMPEX AMTEC. That would have been a welcome addition to any TRT.</DIV>
<DIV> </DIV>
<DIV>The mixing does the following. 3.58 unstable from tape plus
stable 19.8 gives 23.38 unstable. 23.68 unstable minus 19.68 unstable
gives 3.58 with the errors canceled out. Black magic that I have
always had a tough time getting my mind to grab a hold of this. </DIV>
<DIV> </DIV>
<DIV>So I have to ask. Does this TRT still exist? If so where is it
and what condition?</DIV>
<DIV> </DIV>
<DIV>Chris Hill</DIV>
<DIV>WA8IGN</DIV></FONT></BODY></HTML>