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» Film-Tech Forum ARCHIVE   » Operations   » Film Handlers' Forum   » 35mm mag sound (Page 2)

 
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Author Topic: 35mm mag sound
Gordon McLeod
Film God

Posts: 9532
From: Toronto Ontario Canada
Registered: Jun 99


 - posted 11-19-2002 09:22 AM      Profile for Gordon McLeod   Email Gordon McLeod   Send New Private Message       Edit/Delete Post 
The dubber in question is a westrex and they are usually very stable but like the magnatech's with servo reel controls they have earned the name "3 mile Island" dubbers when the servos get out of whak

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Mark Gulbrandsen
Resident Trollmaster

Posts: 16657
From: Music City
Registered: Jun 99


 - posted 11-19-2002 11:10 PM      Profile for Mark Gulbrandsen   Email Mark Gulbrandsen   Send New Private Message       Edit/Delete Post 
Jan,
If any servo controled dubber ever goes wacko just kill the power to it. On the Westrex there should be a toggle switch down below on the power supply panel. Shutting down the dubber will also stop the projector through the show controller.

The dubber we installed at Thanksgiving point is a Westrex and it runs great. Proper maintainance is the best cure to not having any problems. Also, belt replacement, at least every 6 months is in order, especially if you run mag alot. Any servo system can become Three Mile Island if you loose one side of the supply rails, or if a belt breaks and the servo system tries to make up for the lack of things not turning.
Mark @ CLACO

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Gordon McLeod
Film God

Posts: 9532
From: Toronto Ontario Canada
Registered: Jun 99


 - posted 11-20-2002 09:19 AM      Profile for Gordon McLeod   Email Gordon McLeod   Send New Private Message       Edit/Delete Post 
The Westrex dubber usually has two powersupplys the smaller one is for the preamps and the larger is for the actuall interlock and transport.
The extreme smoothness of there transport has always kept them a popular unit for recording on and especially recording striped release prints

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