[QuadList] VR-1200B Daily Servo Set UP

[Don Norwood]

Hi Chris:

I agree absolutely that the machines should lock in 4 seconds (from stop mode, less from standby) if the servo settings are correct.  My point was that with the improvements I mentioned, the servo stays in adjustment, which saves you from having to do the daily setup.  It's not unusual for the error voltages to remain zeroed and the oscillators on frequency for weeks or even months at a time.

Incidently, I'd be curious about how others operate VR-1200/2000 or RCA TR-70 machines regarding rolling old tapes from stop or from standby.  Not what was done "back in the old days", but what you do now with vintage material.  My approach is to always roll from stop.  The reason is that I believe it is easier on the tape, considering that if the capstan is already at speed when the pinch roller engages, it is more stressful to the tape.  

Don

----- Original Message ----- 
  From: Chill315 at aol.com 
  To: quadlist at quadvideotapegroup.com 
  Sent: Sunday, August 23, 2009 3:49 PM
  Subject: Re: [QuadList] VR-1200B Daily Servo Set UP


  One of the things that we did was keep the servos very tight.  If the machine was locking in 4 or more seconds, then it was time to do an alignment.  

  Yes the power supplies were an issue but the machine could do a reliable lock in less than 4 seconds.  Our situation was that we were editing and had to make the servos as tight as possible.

  Chris Hill

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