[QuadList] AVR3 Video Head Degausing

[chill315 at aol.com]

IMHO the rotary head is not the problem.  The biggest thing that I found needing degaussing was the rest of the tape path.  The magnetized areas would show up as fine dots on a diagonal line.  This was caused by erasing a part of the tape.  But it would only be a fine amount and appear to be a scratch.

Degaussing the path and it would disappear.  The problem was that the demagnetization had taken place and the tape is now degraded.

We did the tape path about every 25 hours of head use.

Chris Hill

On Jul 25, 2012, at 1:32 PM, lee williams <lasvegastvengineer at yahoo.com> wrote:

> Celebrating four years of Quad Conversations, July 25, 2012
> 
> _______________________________________________
> Does anybody have any experience on the benefits of degaussing the video heads on a Mark IV head?
>  
> Came across the old maintenance manual for the AVR3 and Ampex recommended that it be done every 100 hours. (As well as the entire tape path).
>  
> Is this overkill ?
>  
> Thanks
> Lee
>  
>  
> 
> _______________________________________________
> Please trim posts to relevant info when replying.
> 
> Change subject to reflect thread direction. Thanks.
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