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<DIV>Another thought on the video heads.</DIV>
<DIV> </DIV>
<DIV>RCA used a guide height adjuster that was positioned differently than
AMPEX. It was on the back side of the head as I put it. I never
looked at it but did this create a different set of tilt in the guide as you
adjusted it that the top of the guide would angle away from the heads as you
added height? And the opposite with the Ampex head? Any input from
someone?</DIV>
<DIV> </DIV>
<DIV>Another thing was the way that the Tone Wheel pulse or the Tach pulse was
generated. Then the Mark 15 series of heads had both optical and
magnetic.</DIV>
<DIV> </DIV>
<DIV>So which is better and the solutions that each brought to the table.</DIV>
<DIV> </DIV>
<DIV>Chris Hill</DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV>
<DIV>In a message dated 3/27/2011 12:05:33 P.M. Eastern Daylight Time,
Chill315@aol.com writes:</DIV>
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<DIV>I thought I would try a different discussion for this week.</DIV>
<DIV> </DIV>
<DIV>RCA and AMPEX were the two types of machines that we see the most.
There were different philosophies between the two for the manufacture of High
Band Quad Heads.</DIV>
<DIV> </DIV>
<DIV>So what are these differences and how do they make the machine
better or worse.</DIV>
<DIV> </DIV>
<DIV>My first comment is that the Ampex Mark X and XV had a pre amp in the
head. RCA used a pre amp below the deck. There were advantages to
the 1200 and 2000 series that you did not have to mount something below the
deck. RCA had the slide in pre amp.</DIV>
<DIV> </DIV>
<DIV>I know there were also differences in the mechanical designs. So
what were the advantages for each.</DIV>
<DIV> </DIV>
<DIV>Let the discussion begin.</DIV>
<DIV> </DIV>
<DIV>Chris Hill</DIV>
<DIV>WA8IGN</DIV></FONT></FONT></BLOCKQUOTE></DIV></FONT></BODY></HTML>