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<div style="font-family: tahoma,new york,times,serif; font-size: 14pt;"><div>Hey Tom,<br><br>I learned about helical scan servos in 1965, with the Ampex VR-7000, w/a belt driven scanner servo, and four months later, the entire engineering dept started a Final System Test line for a month, since we could build machines faster than we could test them. <br>A new machine would get a mechanical "turn-on, smoke test", and then the servo would get set up, and then I would get to set up the video system.<br>We were having some vendor problems, so the engineer who was doing the servo set-up, taught me how to set up the servo, with a test tape, and my "thumb". This would let me bypass his test position and get on with getting the video working which was what I really liked to do. <br>When you were done everything, it was set up properly and when you check the sample and hold with a
scope you didn't even have to re-center it on the ramp.<br>Two years later, and 8,000 miles away, at a Catholic mission, 50 miles outside of Manila, I helped a missionary priest, who had a scope, set up a VR-7000 servo after he had replaced the rubber belt. I put the scope aside, told him to watch for two minutes and then when it was working, I would take him back to the start and set it up "by the book" with the scope. <br>It's very hard to teach people to use fingers to test mechanical items and some people are very heavy handed. <br>When you get it right, you will remember it forever!<br><br>Bill Carpenter<br></div><div style="font-family: tahoma,new york,times,serif; font-size: 14pt;"><br><div style="font-family: verdana,helvetica,sans-serif; font-size: 12pt;"><font size="2" face="Tahoma"><hr size="1"><b><span style="font-weight: bold;">From:</span></b> Tom Evans <tom@tom-evans.com><br><b><span style="font-weight: bold;">To:</span></b>
Quad List
<quadlist@quadvideotapegroup.com><br><b><span style="font-weight: bold;">Sent:</span></b> Mon, June 7, 2010 8:46:05 PM<br><b><span style="font-weight: bold;">Subject:</span></b> Re: [QuadList] OT: And now-- your palm-sized, color, HD, Quad editing suite replacement<br></font><br> The xylene port is pretty obvious right on top, but I'm not sure where<br>they put the air compressor.<br><br>Anyone who has ever used a thumb to clear an on-the-air head clog<br>would appreciate an app where a thumb gesture would fix whatever ails<br>a picture.<br><br>-Tom<br><br><br>On Mon, Jun 7, 2010 at 9:28 PM, Ted Langdell <<a rel="nofollow" ymailto="mailto:ted@quadvideotapegroup.com" target="_blank" href="mailto:ted@quadvideotapegroup.com">ted@quadvideotapegroup.com</a>> wrote:<br>> Hi, Bill,<br>> Since this is a QuadList, I'd think the apps need to QUAD related: Add<br>> scalloping (adjustable for whether you're trying to mimic the vacuum
guide<br><br>_______________________________________________<br>Please trim posts to relevant info when replying!<br>Send QuadList list posts to <a rel="nofollow" ymailto="mailto:QuadList@quadvideotapegroup.com" target="_blank" href="mailto:QuadList@quadvideotapegroup.com">QuadList@quadvideotapegroup.com</a><br>Your subscribe, unsubscribe and digest options are here:<br><span><a target="_blank" href="http://mail.quadvideotapegroup.com/mailman/listinfo/quadlist_quadvideotapegroup.com">http://mail.quadvideotapegroup.com/mailman/listinfo/quadlist_quadvideotapegroup.com</a></span><br></div></div> </div>
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