[QuadList] AVR3 Video Head Degausing

[lee williams]

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 
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