[QuadList] Changes in Post over the years (wasElectronic Editing Notes)

[Don Norwood]

Trevor:

The VPR-7900 which followed the 7800 by just a few years added a flying erase head, moved the dropout into the vertical interval, had an H-locked drum servo, and added Very High Band carrier mode which was identical to quad and then later to type-C format.  All of that allowed very high quality video and edits.  So while the 7800 had its limitations, it was a stepping stone in the development of helical during an era when many thought it could not be done.  Thanks to Bill and all who worked on those projects!

I still have a couple of 7900's.  Park has seen one of them and I think he would agree that the quality is quite good.  The transport design with the moving guides was the weak link, and that was addressed by the VPR-1.  

Don

  ----- Original Message ----- 
  From: Trevor Brown 


  Interesting Bill 

  I never saw anything but Push and Pray on VR 7800

  Insert 3 second cycle out of edit was a problem for drop ins

  VR 650 was worse with 7 seconds

   

  Hated the VR 7800 machine format with its hole in the picture

  Thought IVC Alpha wrap was a better idea

  But I think it was several years later

   
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