[QuadList] HS-100 disc

[Dennis Degan]

		On Nov 7, 2012, at 11:18 AM, David Crosthwait wrote:

 > Who had experience with the HS 100/HS 200 systems on this list? The  
knowledge base on these units is dwindling. The last usage I can  
personally recall was in the 80's for The Breeder's Cup (NBC) when the  
producers wanted a precision stop action as the winning horse crossed  
the line.

		I pipe up:

	I had limited maintenance experience with it at both NBC in 1978 and  
Reeves/Teletape in 1979.  All I remember is it was VERY finicky to get  
right.  The one we had at R/T was specially modified by the Reeves  
machine shop.  They made little aluminum mounting blocks with screw  
adjustments on them to beef up the stability of the flying head  
positioning.  Once aligned, the heads STAYED aligned for a long time.   
Reeves also had modifications of the air filtration system to improve  
cooling.

			Dennis Degan, Video Editor-Consultant-Knowledge Bank
					     NBC Today Show, New York



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