I just noticed that 3M still supplies neutralizing fans.

http://solutions.3m.com/wps/portal/3M/en_US/Static/Home/Products/ProductCata
log/?PC_7_RJH9U5230GDE40I2KG4TI91816_nid=S87XHCTL9WbeZJNMXBKD0Wgl

Jerry
Media Sciences, Inc.

> -----Original Message-----
> From: Association for Recorded Sound Discussion List
> [mailto:[log in to unmask]] On Behalf Of Scott D. Smith
> Sent: Wednesday, February 09, 2011 6:49 PM
> To: [log in to unmask]
> Subject: Re: [ARSCLIST] static noise
> 
> We used to use a special device containing radioisotopes to control
> static on film dubbers. Can't remember who manufactured it right off
> hand, but it definitely helped in wintertime. Never tried it on tape
> transports, but in theory it should help.
> 
> We also had to crank up the humidity in the projection booth to help
> with static on the film projectors.
> 
> Scott D. Smith
> Chicago Audio Works, Inc.
> 
> Quoting Tom Fine <[log in to unmask]>:
> 
> > Hi Richard:
> >
> > 40% for acetate and early polyester too? I thought low humidity only
> > for known sticky-shed formulations??
> >
> > My experience with early-era brown-oxide tapes is that they curl/warp
> > less and get brittle less if kept at more typical Northeastern US
> > humidity levels. Tapes I've handled that were kept in very dry
> > environments were sometimes very brittle and in extreme cases would
> > shed oxide as they moved thru a transport. Splices also tend to dry out
> > and fail at low humidity for these era tapes.
> >
> > -- Tom Fine
> >
> > ----- Original Message ----- From: "Richard L. Hess"
> > <[log in to unmask]>
> > To: <[log in to unmask]>
> > Sent: Wednesday, February 09, 2011 7:10 AM
> > Subject: Re: [ARSCLIST] static noise
> >
> >
> >> Shai,
> >>
> >> Thank you for passing this along. Sadly, the author, John Pytlak,
> >> passed a few years ago, as you may recall. He was one of the real
> >> bright lights on the AMIA list. Several others are also gone.
> >>
> >> I would caution about handling magnetic tape long-term at 50-60 %
> >> RH as it might increase hydrolysis. The general recommendation for
> >> tape is 40%.
> >>
> >> Regards,
> >>
> >> Richard
> >>
> >> On 2011-02-09 5:55 AM, Shai Drori wrote:
> >>> Dear members
> >>> I received the following link through the AMIA list. I was about
> >>> vitalizing film but turns out Kodak has a few suggestions about
> >>> controlling static build up. Worth reading.
> >>> Shai
> >>> static
> >>>
> <http://www.kodak.com/US/plugins/acrobat/en/motion/newsletters/archived/py
> tlak/booth.pdf>
> >>>
> >>
> >> --
> >> Richard L. Hess                   email: [log in to unmask]
> >> Aurora, Ontario, Canada           (905) 713 6733     1-877-TAPE-FIX
> >> http://www.richardhess.com/tape/contact.htm
> >> Quality tape transfers -- even from hard-to-play tapes.
> >>