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<DIV>The discussions and humor is very interesting. </DIV>
<DIV> </DIV>
<DIV>I had the last version of the Inter-Sync produced. The machines were
manufactured in the early 70's. It was very stable. The only reason
that we let the head run for 30 minutes was to get the guide up to
temperature. We found that the tip penetration would change as we edited
if this was not done. </DIV>
<DIV> </DIV>
<DIV>I also had a TR-60 that was serial number 5. It would lock up in a
little longer time than the 1200's. Every mod that was put out by RCA was
done to the machine but it still did not help. The biggest problem was
getting a good solid lack of jitter from the machine. Timing was always an
issue. It did not have a stable 3.58 phase relationship with other
sources. Always a couple of degrees off each time it played. It
worked great as a dub source but through the switcher doing match frames was not
the best.</DIV>
<DIV> </DIV>
<DIV>Regarding the rolling of tape stock from ready or not ready. The reel
boost comes on for about 1.5 seconds after the play button is pushed. This
is in all cases. The guide comes in depending on if it is up to
speed. Typically 1 second as determined by the sequence controller.
The pinch roller is the same. If the head is not turning, than the time
for the two events is about 3.8 seconds. </DIV>
<DIV> </DIV>
<DIV>So which is better, letting the tape be under the control of the take up
and supply voltages setting the torque or letting the capstan control the
speed? I think the answer is really depending on the reel and tape pack
sizes on the two turntable. I can see where the reel torques will either
have the tape too slow or too fast before capstan engagement. Perhaps this
is why the vacuum columns were invented on the AVR-1. </DIV>
<DIV> </DIV>
<DIV>This would be an interesting discussion to have with the engineers that
designed the transport systems.</DIV>
<DIV> </DIV>
<DIV>Chris Hill</DIV></FONT><DIV CLASS="aol_ad_footer" ID="eac120eaf5ca10759256a475e81dff50"><br/><font style="color:black;font:normal 10pt arial,san-serif;"> <hr style="margin-top:10px"/></font></DIV></BODY></HTML>