8mm Forum: Sound Head Cleaning

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Topic: Sound Head Cleaning

Tom Dee
Film Handler

Posts: 62
From: Phoenix AZ, USA
Registered: Oct 2014

posted January 15, 2015 12:38 AM

What would be the best way and product to clean you playback/record heads on an Elmo ST 1200HD.

Thanks
Tom

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Dominique De Bast
Film God

Posts: 4486
From: Brussels, Belgium
Registered: Jun 2013

posted January 15, 2015 05:03 AM

I use alcohol. It is advise also to demagnetize them from time to time.

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Dominique

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Tom Dee
Film Handler

Posts: 62
From: Phoenix AZ, USA
Registered: Oct 2014

posted January 15, 2015 11:25 AM

Thanks for the advice Dominique, how do you demagnetize them?

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Maurizio Di Cintio
Jedi Master Film Handler

Posts: 977
From: Ortona, Italy
Registered: Jan 2004

posted January 15, 2015 12:40 PM

There are specific mag-head demagnetizers, places like radio shack should still sell them. Yet there is an easy, inexpensive way to de-mag sound heads, namely to use the heads themselves; you just have to set the projector in record mode with no film, let it run with the sound on sound knob set to normal (100%) position and wait for about 15 secs. The bias current from the heads will demagnetize them. Of course this will not demag other metal parts coming in contact with the film such as the capstan. But before a projector needs demag, it needs long long hours of use.

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Maurizio

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Dominique De Bast
Film God

Posts: 4486
From: Brussels, Belgium
Registered: Jun 2013

posted January 15, 2015 12:52 PM

Tom, I didn't see your question, sorry for the delay. I use one of the inexpensive demagnetizers Maurizio is refering to. The free alternative seem nice as wel.

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Dominique

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Osi Osgood
Film God

Posts: 10204
From: Mountian Home, ID.
Registered: Jul 2005

posted January 15, 2015 01:22 PM

I use alcohol too, but only as a sedative! (snicker)

He's right though, alcohol on (in my case) a "cut tip"

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"All these moments will be lost in time, just like ... tears, in the rain. "

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Tom Dee
Film Handler

Posts: 62
From: Phoenix AZ, USA
Registered: Oct 2014

posted January 16, 2015 10:09 PM

Thanks guys for all the good info, would odorless mineral spirits work to clean the heads?

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